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Stephen T. McClain, Ph.D., P.E. |
Education
Ph.D., Mechanical Engineering, Mississippi State University, 2002
M.S., Mechanical Engineering, Mississippi State University, 1997
B.S., Mechanical Engineering, The University of Memphis, 1995
2021-Present |
Graduate Program Director, Department of Mechanical Engineering, Baylor University |
2019-Present |
Professor, Department of Mechanical Engineering, Baylor University |
2013-2019 |
Associate Professor, Department of Mechanical Engineering, Baylor University |
2007-2013 |
Assistant Professor, Department of Mechanical Engineering, Baylor University |
2011-Summer |
Air Force Summer Faculty Fellow, Munitions Directorate, Eglin AFB, FL |
2002-2007 |
Assistant Professor, Department of Mechanical Engineering, the University of Alabama at Birmingham |
2004-Summer |
NASA Summer Faculty Fellow, NASA Glenn Research Center, Icing Research Branch, Cleveland, OH |
1997-2002 |
Lecturer and Undergraduate Laboratory Manager, Department of Mechanical Engineering, Mississippi State University |
1996-1997 |
Graduate Research Assistant, Mechanics and Materials Laboratory, Department of Mechanical Engineering, Mississippi State University |
1993-1994 |
Engineering Co-op, Entergy Operations Inc., Arkansas Nuclear One, Russellville, AR |
Specialty Areas
In-flight ice accretion on aircraft surfaces, Aircraft gound icing by frost, Hair sensors and micro-pillars for unsteady
flow detection, Gas turbine blade aerodynamics and cooling, Uncertainty
analysis, Experimental techniques for surface temperature measurement and for flowfield velocity and temperature measurement
Link to Fall 2021 Synergy Magazine Article on Frost and Flight Safety Research
Link to Summer 2018 Baylor Magazine Article on Aviation Research
Convective Heat Transfer from Realistic Ice Accretion Roughness
Ice accretion effects are mitigated during aircraft design using computer codes such as LEWICE. The characterization of convective heat transfer from surfaces with ice roughness is a significant area for improvement of these codes. Funded through NASA Collaborative Agreement No. NNX12AB85A, the current effort focuses on the measurement of convective heat transfer to flows over surfaces with realistic ice roughness properties. The project consists of three primary tasks: 1) measuring the convective enhancement of constant freestream velocity flows over surfaces with realistic ice roughness, 2) measuring the convection heat transfer of flows interacting with the leading edge of an aircraft wing with realistic ice roughness, and 3) measuring the convective enhancement of stagnating flows over surfaces with realistic ice roughness. The project efforts are supported by collaborative activities at the Icing Research Branch at NASA Glenn to measure ice roughness exhibited by airfoils experiencing short-duration icing events. Secondary efforts of the project involve the evaluation of ice roughness properties from three-dimensional laser scans of iced airfoil surfaces created in the Icing Research Tunnel at NASA Glenn. The ultimate goal of the effort is to implement new correlations or advanced approaches for predicting convective heat transfer from realistic ice roughness distributions in current and future ice accretion codes. The first two images below demonstrate the difference between the relative roughness measured using a laser scan of an iced airfoil compared to the ice thickness or height relative to the clean airfoil surface. The third image below shows measurements of convective heat transfer rates along a surface exhibiting scaled ice accretion roughness statistical properties and a smooth-to-rough transition.
Ice Accretion Roughness on N+2 and N+3 Geometries
The project NNX16AN32A, “Ice Accretion Roughness Evolution and Enhanced Convection for N+2 and N+3 Vehicle Concepts and Technologies,” followed project NNX12AB85A. The focus of NNX16AN32A was on ice accretion roughness specific to N+2 and N+3 generation aircraft such as 1) the D8 double bubble concept, 2) the blended wing concept, and 3) the Truss-braced-wing concept. To mitigate airframe ice accretion dangers on aircraft employing N+2 and N+3 technologies, a better understanding of icing physics and convective heat transfer related to the initial ice roughness formed in icing conditions expected for N+2 and N+3 based aircraft was desired. The work included 1) continued development of the Airfoil Roughness Evaluation System (ARES) software for laser scan point clouds measured on swept surfaces of varying cross sectional area, 2) analysis of ice roughness accreted on laminar flow wings and blended body shapes representative of N+2 and N+3 geometries using the approach of McClain and Kreeger (2013), and 3) characterization of convection on surfaces using realistic unwrapped roughness and model roughness in a flat plate subsonic wind tunnel employing thin-film heaters and infrared surface temperature measurements in steady state conditions. Phase I efforts focused on characterizing roughness evolution and enhanced convection on NACA 0012 and HAARP-II airfoils in the Icing Research Tunnel (IRT) at NASA Glenn. Phase II efforts completed the HAARP-II airfoil investigation and initiated an investigation of roughness evolution and enhanced convection on the CRM65-Hybrid-Midspan model. The collaborative activities 1) illuminated spatial and temporal roughness evolution for N+2 and N+3 geometries and flight envelopes, 2) verified proper roughness scaling approaches for N+2 and N+3 geometries, 3) revealed convective enhancement caused by the roughness, and 4) assisted NASA developers implementing the new roughness and convection enhancement modeling approaches in GlennICE.
Cold Soaked Fuel Frost
Cold-soaked fuel frost (CSFF) is a form of aircraft wing and surface contamination that occurs when a vehicle caries sufficient fuel for multiple trips or take-offs and landings. Following the first trip, which may reach altitudes above 10,000 m (33,000 ft), the fuel for the subsequent trips is carried in the wing tanks and may reach temperatures below -30 C. In certain times of the year at some airports, temperatures and humidity levels will form CSFF on the aircraft wing surfaces over the fuel tanks. Unless an exemption is granted for the specific aircraft model, aircraft are not allowed to takeoff if the wing surfaces are contaminated by frost. Because aircraft operators desire to minimize vehicle time spent at airports, aircraft manufacturers may pursue designs that safely operate with CSFF at takeoff and may pursue certification exemptions for aircraft models enabling CSFF takeoffs. To assist manufacturers in the design of future aircraft and to assist regulators in evaluating certification exemption requests, this project sought 1) to acquire frost roughness evolution measurements in the Baylor Frost Tunnel, 2) to develop a predictive model for frost roughness evolution, 3) to acquire measurements of frost roughness evolution in the newly developed Baylor Climatic Chamber and Aviation Frost Facility (CAFF), and 4) to refine the model for frost occurring on large size surfaces comparable to the scale of modern aviation wings and integrated fuel tanks. This effort was sponsored through the U.S. Federal Aviation Administration (FAA) under cooperative agreement 17-G-011. The image below is from a video demonstrating a 140-minute frost test in the CAFF.
A video describing the CAFF and detailing example frost measurements may be found on YouTube. If you have a skin material or surface treatment that you desire to test in the CAFF for cold soaked fuel frost growth and if you are willing to sponsor the testing effort, please contact me for engineering drawings of the skins.
Microwave Collection Efficiency System
In collaboration with the Microwave Applied Metrology Laboratory (MAML) at Baylor University, a microwave system was developed to measure the amount of water collected on an airfoil surface relative to the amount of water in a cloud that pass through an equivalent upstream projected area, including the ratio of these quantities. This ratio is defined as the surface collection efficiency, and the ratio is a critical parameter for ice accretion prediction codes such as LEWICE, GlennICE, and FENSAP-ICE. Traditional methods for measuring collection efficiency involve attaching blotter paper to an airfoil surface to collect droplets with dye added to the water entering the spray bar system. Following precise spray system actuation, the amount of dye remaining on the blotter paper is measured using a reflectance spectroscopy system. The effort to develop a new microwave system for collection efficiency measurements included 1) construction of two single-waveguide models and one partial airfoil model with multiple microwave waveguides and a multiplexing system, 2) construction of a spray system for the Liquid Film and Cloud Chamber (LFACT) at the Baylor University with fast pneumatic actuation, and 3) testing of the microwave sensing system in the LFACT. The feasibility and operating physics of the microwave elements was verified, and multiple methods for using the system in a larger icing wind tunnel were explored. The spray bar system demonstrated adequate cloud actuation times for the most useful measurement approach. However, the clouds generated in the LFACT were found to be non-uniform. Methods were explored to account for the cloud non-uniformity in the LFACT for future microwave sensor collection efficiency investigations. A patent application was filed for the flexible printed circuit board (PCB) and microwave sensing approach for liquid film thickness measurements. This effort was sponsored through the U.S. Federal Aviation Administration (FAA) under cooperative agreement 692M151940004. A video demonstrating the operation of the microwave system for steady-state liquid film measurements (without blotting media) may be found on YouTube.
Biomimetic Hair Sensor Arrays for Aircraft Gust Mitigation
Bats and many species of insects use arrays of hairs or antennae to detect atmospheric gusts and mitigate their effects on their flight paths. Small military air vehicles to be used in future battlefield situations will also be susceptible to atmospheric gusts. Arrays of biomimetic hair sensor are being explored to help small air vehicles mitigate the adverse effects of atmospheric gusts on craft guidance and control. Research efforts are underway at Baylor to characterize the fluid-structure interaction of surface mounted carbon fiber “hairs” with unsteady flows representative of atmospheric gusts. While the carbon fibers are passive in that they do not produce an electrical signal that could be used for aircraft guidance or control, the measurements and resulting mathematical models will be used to design and fine tune sensors for detecting various types of unsteady flow phenomena affecting small air vehicles. The work is being performed in collaboration with engineers in the Air Force Research Laboratory, Munitions Directorate at Eglin Air Force Base. The image below is from a video reporting the results of image analysis measurements of the deflection of a passive hair in unsteady flows. The time tracking chart of tip displacement versus time in the image demonstrates four significant events during the unsteady flow tests: 1) the wind-tunnel flow speed ramp-up to 9 m/s (which occurs essentially linearly at 1 m/s per second), 2) a series of three discrete flap pulses, 3) two sinusoidal flap actuations with the amplitude of the second actuation being larger than the first, and 4) a second series of three discrete flap pulses where the first discrete pulse was very large.
Flows Over Rough
Surfaces
Following the work of Dr. B. K. Hodge (Mississippi State University), Dr. R. P.
Taylor (Mississippi State University), Dr. H. W. Coleman (University of
Alabama-Huntsville), and M. H. Hosni (Kansas State University), Dr. McClain has
continued development of the well-known discrete element model for the
computation of the interaction of surface roughness with turbulent flow and
convective heat transfer. Dr. McClain's research has extended the discrete-element
model to include randomly-rough surfaces such as those found on high-usage gas
turbine blades. This research was supported by the U.S. Department of
Energy, National Energy Technology Laboratory, and the South Carolina Institute
for Energy Studies and was performed in collaboration with Maj. J. P. Bons, Dr.
R. Sondergaard, and Dr. R. Rivir at the Air Force Research Laboratory.
Personal Vehicle Fuel Economy
As part of Alabama Department of Economic and Community Affairs (ADECA) Grant No. 1EX SEP06 10, "Consumer Practices for
Maximizing Fuel Economy," a fuel consumption simulator (UABFCS) was developed to help
students in Driver's Education courses identify driving practices that maximize
a vehicle's fuel economy. UABFCS was developed
as a first-person driving simulation and resembles the video-game driving
simulators that are available for recreation. While the simulator was created
for use with inexpensive off-the-shelf equipment, the simulator uses an
incompressible flow model of the intake and exhaust processes with realistic
transmission and torque converter models to predict fuel consumption and
vehicle performance. The engine and transmission models are calibrated using
manufacturer reported engine performance data. The resulting simulator operates
quickly enough to provide visual continuity and captures the performance of a
mid-sized sedan with a five-speed automatic transmission. A brochure, a
teaching manual, and a supporting website were also developed as fuel economy resources for Alabama drivers.
Alcala-Medel, J., Kulkarni, J., McClain, S., Li, Y., (2024), "Simulation and measurement of electromagnetic wave propagations along a wearable e-textile metasurface transmission line," Journal of Electromagnetic Waves and Applications, 1–15, https://doi.org/10.1080/09205071.2024.2378052.
Boldt, R., McClain, S.T., Kunz, R.F., (2024), "Flow Through a Passage With Scaled Additive Manufacturing Roughness Representing Different Printing Orientations." Journal of Fluids Engineering, Vol. 146, No. 12, 121203, https://doi.org/10.1115/1.4065765.
Boldt, R., McClain, S.T., Kunz, R.F., Yang, X.I.A., (2024), "Tomographic flow measurements over additively manufactured cooling channel roughness," Experiments in Fluids, April, 65(4): 58, [https://doi.org/10.1007/s00348-024-03798-w].
McClain, S.T. and Ahmed, S., (2024), "Simulation of Drop Collection with Non-Uniform Cloud Distributions for Collection Efficiency Sensor Validation," SAE Int. J. Adv. and Curr. Prac. in Mobility, 6(3): 1302-1311, and as SAE Technical Paper 2023-01-1405, https://doi.org/10.4271/2023-01-1405.
Altland, S., Yang, X.I.A., Thole, K.A., Kunz, R.F., and McClain, S.T., (2023), "Application of a Distributed Element Roughness Model to Additively Manufactured Internal Cooling Channels," Journal of Turbomachinery, October, 145(10): 101004, [https://doi.org/10.1115/1.4062838].
Altland, S., Zhu, X., McClain, S., Kunz, R., Yang, X., (2022), "Flow in Additively Manufactured Super-Rough Channels," Flow, Vol. 2, E19, [DOI:https://doi.org/10.1017/flo.2022.13].
Stafford, G.J., McClain, S.T., Hanson, D.R., Kunz, R.F., and Thole, K.A., (2022),"Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness," Journal of Turbomachinery, Vol. 144, No. 4, 041008, [DOI: 10.1115/1.4052524].
Zhang, T., O'Neal, D.L., McClain, S.T., and Riley, J.T. (2021), "Dimensionless Model of Frost Roughness on Cold Flat Plate Under Forced Convection", Journal of Aircraft, Vol. 58(6), pg. 1375-1385, [DOI: https://doi.org/10.2514/1.C036066].
McClain, S.T., Hanson, D.R., Cinnamon, E., Snyder, J.C., Kunz, R.F., and Thole, K.A., (2021),"Flow in a Simulated Turbine Blade Cooling Channel with Spatially Varying Roughness Caused by Additive Manufacturing Orientation," Journal of Turbomachinery, Vol. 143, No. 4, 071013, [DOI: 10.1115/1.4050389].
Zhang, T., O'Neal, D.L., and McClain, S.T., (2021), "Variation of Frost Roughness on a Flat Plate Under Forced Convection," Journal of Thermal Science and Engineering Applications, Vol. 13, No. 2, 011020, [DOI: 10.1115/1.4047570].
Zhang, T., O'Neal, D.L., and McClain, S.T., (2020), "Impact of Environmental Conditions on Frost Crystal Structure," International Journal of Air Conditioning and Refrigeration, Vol. 28, No. 2, 2050014.
Zhang, T., O'Neal, D.L., and McClain, S.T., (2020), "Analysis of frost thickness and roughness growth from the perspective of frost crystal structure," International Journal of Refrigeration, Vol. 112, No. 2, pg 314-323.
Shannon, T. and McClain, S.T., (2020), "An Assessment of LEWICE Roughness and Convection Enhancement Models," SAE Int. J. Adv. and Curr. Prac. in Mobility, 2(1):128-139, https://doi.org/10.4271/2019-01-1977.
McClain, S.T., Vargas, M., Tsao, J.-C., and Broeren, A., (2020), "Influence of Freestream Temperature on Ice Accretion Roughness," SAE Int. J. Adv. and Curr. Prac. in Mobility, 2(1):227-237, https://doi.org/10.4271/2019-01-1993.
Hanson, D.R., Kinzel, M.P., and McClain, S.T., (2019), "Validation of the Discrete Element Roughness Method for Predicting Heat Transfer on Rough Surfaces" International Journal of Heat and Mass Transfer, Vol. 136, June, pg 1217-1232.
Broeren, A.P., Addy, H.E., Lee, S., Monastero, M.C., and McClain, S.T., (2018), "Three-Dimensional Ice Accretion Measurement Methodology for Experimental Aerodynamic Simulation," Journal of Aircraft, Vol. 55. No.2, pg 817-828.
S.R. Mart, S. T. McClain, and L. M. Wright, “Turbulent Convection from Deterministic Roughness Distributions with Varying Thermal Conductivities,” Journal of Turbomachinery, Vol. 134, No. 5, 051030, 2012.
S. R. Mart and S. T. McClain, “Protuberances in a Turbulent Thermal Boundary Layer,”Journal of Heat Transfer, Vol. 134, No. 1, 011902, 2012.
L. M. Wright, S. T. McClain, and M. D. Clemenson, "Effect of Freestream Turbulence Intensity on Film Cooling Jet Structure and Surface Effectiveness using PIV and PSP," Journal of Turbomachinery, Vol. 133, No. 4, 041023, 2011.
L. M. Wright, S. T. McClain, and M. D. Clemenson, "Effect of Density Ratio on Flat Plate Film Cooling with Shaped Holes Using PSP," Journal of Turbomachinery, Vol. 133, No. 4, 041011, 2011.
S. T. McClain, P. Tino, and R. E. Kreeger, "Ice Shape Characterization Using Self-Organizing Maps," Journal of Aircraft, Vol. 48, No. 2, pg 724-730, 2011.
S. T. McClain, B. K. Hodge, and J. P. Bons, "The Effect of Element Thermal Conductivity on Turbulent Convective Heat Transfer from Rough Surfaces," Journal of Turbomachinery, Vol. 133, No. 2, 021024, 2011.
S. T. McClain and J. M. Brown, “Reduced Rough-Surface Parameterization for Use with the Discrete-Element Model,” Journal of Turbomachinery, Vol.131, No. 2, 021020, 2009.
J. P. Bons, S. T. McClain, Z. J. Wang, X. Chi, and T. I. Shih "A Comparison of Approximate vs. Exact Geometrical Representations of Roughness for CFD Calculations of Cf and St," Journal of Turbomachinery, Vol. 130, No. 2, 021024, 2008.
S. T. McClain, M. Vargas, R. E. Kreeger, and J. C. Tsao, "Heat Transfer from Protuberances," Journal of Thermophysics and Heat Transfer, Vol. 21, No. 2, pg 337-345, 2007.
S. T. McClain, S. P. Collins, B. K. Hodge, and J. P. Bons, "The Importance of the Mean Elevation in Predicting Skin Friction for Flow over Closely Packed Surface Roughness," Journal of Fluids Engineering, Vol. 128, No. 3, pg 579-586, 2006.
J. P. Bons and S. T. McClain, “The Effect of Real Turbine Roughness with
Pressure Gradient on Heat Transfer,” Journal of Turbomachinery, Vol.
126, No. 3, pg 385-394, 2004.
S. T. McClain, B. K. Hodge, and J. P. Bons, “Predicting Skin Friction and Heat
Transfer for Turbulent Flow over Real Gas-Turbine Surface Roughness Using the
Discrete-Element Method,” Journal of Turbomachinery, Vol. 126, No. 2, pg
259-267, 2004.
S. T. McClain, J. T. Berry, and B. Dawsey, “A
Study of Porosity and Pore Morphology in Aluminum A356.2 Step Castings,” AFS Transactions, Vol. 111, pg 147-158, 2003.
J. P. Bons, R. P. Taylor, S. T. McClain, and R. Rivir,
“The Many Manifestations of Turbine Surface Roughness,” Journal of
Turbomachinery, Vol. 123, No. 4, pg 739-748, 2001.
S. T. McClain, A. S. McClain, and J. T. Berry, “A Comparison of Image-Analysis
and Pyknometry Results for the Percentage Porosity
Evaluation of Two A356 Castings,” AFS Transactions, Vol. 109, pg 321-332, 2001.
S. T. McClain, A. S. McClain, and J. T. Berry, “Theoretical
Density Determination for Secondary Aluminum Alloys,” AFS Transactions, Vol. 108, pg 185-189, 2000.
R. P. Taylor, S. T. McClain, and J. T. Berry, “Uncertainty Analysis of
Metal-Casting Porosity Measurements Using Archimedes’ Principle,” International
Journal of Cast Metals Research, Vol. 11, No. 4, 1999.
J. Shenefelt, S. McClain, R. P. Taylor, and J. T.
Berry, "Counter-Gravity Casting of Thin Wall Aluminum A356: Part II -
Results of Casting Characterization Studies," AFS Transactions, Vol. 106, pg 247-252, 1998.
Conference Papers
McClain, S.T., Forslund, N., and O'Neal, D.L., "Cold Soaked Fuel Frost Measurements and Modeling Using Composite Wing Skins," AIAA Aviation 2024, AIAA-2024-4004, https://doi.org/10.2514/6.2024-4004.
McClain, S.T. and Boldt, R., (2024), "Equivalent Sand-Grain Roughness Parameter Evaluation of Scanned Ice Accretion Geometries," AIAA Aviation 2024, AIAA-2024-4002, https://doi.org/10.2514/6.2024-4002.
Ahmed, M.S., Cary, J., Fezzaa, K., Clark, S., McClain S.T., Jiang, L., (2024), "Effect of Internal and External Swirls on Near-Field Spray Characteristics of Swirl Burst Injectors Using High-Speed X-Ray Imaging," AIAA SciTech Forum, AIAA-2024-0218, https://doi.org/10.2514/6.2024-0218.
McClain, S.T., O'Neal, D. L., Forslund, N., and Ahmed, S.U., (2023), "Cold Soaked Fuel Frost Roughness Evolution on a Simulated Integrated Fuel Tank with Aluminum Skins," SAE Technical Paper 2023-01-1442, https://doi.org/10.4271/2023-01-1442.
McClain, S.T., Herrera, B.J., and Ahmed, S., (2022), "A Microwave System for Airfoil Water Collection Efficiency Measurements," AIAA Aviation 2022 Forum, June 27 - July 1, Chicago, IL, AIAA-2022-4114, https://doi.org/10.2514/6.2022-4114.
McClain, S.T., (2022), "Voxelization and Autocorrelation Analyses for Swept-Wing Ice Accretion Characterization," AIAA Aviation 2022 Forum, June 27 - July 1, Chicago, IL, AIAA-2022-4069, https://doi.org/10.2514/6.2022-4069.
Altland, S., Yang, X., McClain, S.T., Kunz, R.F., and Thole, K.A., (2022),“Application of a Distributed Element Roughness Model to Additively Manufactured Internal Cooling Channels,” ASME Turbo Expo 2022, Turbomachinery Technical Conference and Exposition, June 13-17, Rotterdam, The Netherlands, GT2022-81218.
McClain, S.T., Vargas, M., Tsao, J.-C., Broeren, A.P., (2021), “A Model for Ice Accretion Roughness Evolution and Spatial Variations,” 2021 AIAA Aviation Forum, Virtual Conference, Aug. 2-6, AIAA-2021-2641, https://doi.org/10.2514/6.2021-2641.
McClain, S.T., Vargas, M., Tsao, J.-C., Broeren, A.P., (2021), “Ice Accretion Roughness Variations on a Hybrid CRM65-Midspan Wing Model,” 2021 AIAA Aviation Forum, Virtual Conference, Aug. 2-6, AIAA-2021-2686, https://doi.org/10.2514/6.2021-2686.
Vargas, M., McClain, S.T., Borges, E.J., Broeren, A.P., (2021), “Effect of Water Droplets crossing the Boundary Layer in a Stagnation Point Configuration,” 2021 AIAA Aviation Forum, Virtual Conference, Aug. 2-6, AIAA-2021-2690, https://doi.org/10.2514/6.2021-2690.
Stafford, G.J., McClain, S.T., Hanson, D.R., Kunz, R.F., and Thole, K.A., (2021),“Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness,” ASME Turbo Expo 2021, Turbomachinery Technical Conference and Exposition, June 7-11, Virtual Conference, GT2021-59684.
McClain, S.T., Hanson, D.R., Cinnamon, E., Snyder, J.C., Kunz, R.F., and Thole, K.A., (2020),“Flow in a Simulated Turbine Blade Cooling Channel with Spatially Varying Roughness Caused by Additive Manufacturing Orientation,” ASME Turbo Expo 2020, Turbomachinery Technical Conference and Exposition, Sept. 21-25, 2020, Virtual Conference, GT2020-16069.
McClain, S.T., Zhang, T., Ahmed, A., Stafford, G., Cornejo, J., and O'Neal, D.L., (2020),“A Climatic Facility and Apparatus for Investigations of Cold Soaked Fuel Frost Evolution,” 2020 AIAA Aviation Forum, Reno, NV, June 15-19, AIAA-2020-2808.
McClain, S.T., Vargas, M., Tsao, J.-C., Broeren, A.P., (2020), “Influence of Airfoil Angle of Attack on Ice Accretion Roughness,” 2020 AIAA Aviation Forum, Reno, NV, June 15-19, AIAA-2020-2807.
Watkins, C., Shannon, T.A., and McClain, S.T., (2020), “Skin Friction Variations over a Simulated NACA 0012 with Realistic Ice Accretion Roughness in Reynolds-Scaled Conditions,” 2020 AIAA Aviation Forum, Reno, NV, June 15-19, AIAA-2020-2804.
Hanson, D.R., McClain, S.T., Snyder, J.C., Kunz, R.F., and Thole, K.A., (2019), "Flow in a Scaled Turbine Coolant Channel with Roughness Due to Additive Manufacturing," Proceedings of the ASME Turbo Expo 2019: 17-21 June, Phoenix, AZ, GT2019-90931.
McClain, S., Vargas, M., Tsao, J., and Broeren, A., "Influence of Freestream Temperature on Ice Accretion Roughness," SAE Technical Paper 2019-01-1993, 2019, https://doi.org/10.4271/2019-01-1993.
Shannon, T. and McClain, S., "An Assessment of LEWICE Roughness and Convection Enhancement Models," SAE Technical Paper 2019-01-1977, 2019, https://doi.org/10.4271/2019-01-1977.
Miyauchi, T., McClain, S., Zhang, T., O'Neal, D. et al., "Photogrammetric Frost Roughness Measurements in Cold-Soaked Conditions," SAE Technical Paper 2019-01-1970, 2019, https://doi.org/10.4271/2019-01-1970.
Sakakeeny, J., McClain, S., and Ling, Y., "Simulations of Thin Film Dynamics on a Flat Plate and an Airfoil," SAE Technical Paper 2019-01-1938, 2019, https://doi.org/10.4271/2019-01-1938.
Faulkner, C.D., Herrera, B.J., Jean, B.R., and McClain, S.T., (2018), "Improved Electromagnetic Sensor for Detection of Ice Accretion inside Turbofan Engine Axial Compressor Stages," 10th AIAA Atmospheric and Space Environments Conference, June 25-29, Atlanta, GA, AIAA-2018-4226.
McCarrell, J.L., Shannon, T.A., and McClain, S.T., (2018), "Convection from Surfaces with Ice Roughness Characterized at Increasing Accumulation Times," 10th AIAA Atmospheric and Space Environments Conference, June 25-29, Atlanta, GA, AIAA-2018-3016.
Clemenson, J.-M., Shannon, T.A., and McClain, S.T., (2018), "A Novel Method for Constructing Analog Roughness Patterns to Replicate Ice Accretion Characteristics," 10th AIAA Atmospheric and Space Environments Conference, June 25-29, Atlanta, GA, AIAA-2018-3015.
McClain, S.T., Vargas, M., Tsao, J.-C., and Broeren, A.P., (2018), "Ice Roughness and Thickness Evolution on a Business Jet Airfoil," 10th AIAA Atmospheric and Space Environments Conference, June 25-29, Atlanta, GA, AIAA-2018-3014.
Sakakeeny, J.A., McClain, S.T., and Ling, Y., (2018), "Direct Numerical Simulation of a Thin Film Over a NACA 0012 Airfoil," 10th AIAA Atmospheric and Space Environments Conference, June 25-29, Atlanta, GA, AIAA-2018-2857.
McClain, S.T., Vargas, M., Tsao, J.-C., Broeren, A.P., and Lee, S., (2017), “Ice Accretion Roughness Measurements and Modeling,” 7th European Conference for Aeronautics and Space Sciences (EUCASS), 3-6 July, Milan, Italy, FP-EUCASS-555.
Trapp, T.J., Shannon, T.A., Herrera, B.J., Jean, B.R., and McClain, S.T., (2017), “Electromagnetic Sensor for Detection of Ice Accretion inside Turbofan Jet Engines,” 9th AIAA Atmospheric and Space Environments Conference, June 5-9, Denver, CO, AIAA-2017-4248.
McClain, S.T., Vargas, M., and Tsao, J.-C., (2017), “Ice Roughness and Thickness Evolution on a Swept NACA 0012 Airfoil,” 9th AIAA Atmospheric and Space Environments Conference, June 5-9, Denver, CO, AIAA-2017-3585.
McClain, S.T., (2017), “Spanwise Form Extraction for Ice Roughness Measurements from Misaligned Airfoils or Tapered Wings,” 9th AIAA Atmospheric and Space Environments Conference, June 5-9, Denver, CO, AIAA-2017-3584.
Shannon, T.A. and McClain, S.T., (2017), “Flow Visualization and Skin Friction Variations along Surfaces with Real and Model Ice Roughness,” 9th AIAA Atmospheric and Space Environments Conference, June 5-9, Denver, CO, AIAA-2017-3580.
Hawkins, D.M, Shannon, T.A., and McClain, S.T., (2017), “Convection from Surfaces with Real Laser-Scanned Ice Accretion Roughness and Different Thermal Conductivities,” 9th AIAA Atmospheric and Space Environments Conference, June 5-9, Denver, CO, AIAA-2017-3579.
McClain, S.T., Vargas, M., and Tsao, J.-C., (2016), “Characterization of Ice Roughness Variations in Scaled Glaze Icing Conditions,” 8th AIAA Atmospheric and Space Environments Conference, June 13-17, Washington, DC, AIAA-2016-3592.
McClain, S.T., (2016), “Manual Point Cloud Registration for Combined Ice Roughness and Ice Thickness Measurements,” 8th AIAA Atmospheric and Space Environments Conference, June 13-17, Washington, DC, AIAA-2016-3590.
Shannon, T.A. and McClain, S.T., (2016), “Convection from a Simulated NACA 0012 with Icing Roughness of Different Shape and Thermal Conductivity,” 8th AIAA Atmospheric and Space Environments Conference, June 13-17, Washington, DC, AIAA-2016-3588.
Hughes, M.T., Shannon, T.A., McClain, S.T., Vargas, M., and Broeren, A., (2016), “Convection from Hemispherical and Conical Model Ice Roughness Elements in Stagnation Region Flows,” 8th AIAA Atmospheric and Space Environments Conference, June 13-17, Washington, DC, AIAA-2016-3586.
Hughes, M.T., McClain, S.T., Vargas, M., and Broeren, A., (2015), “Convective Enhancement of Icing Roughness in Stagnation Region Flows,” 7th AIAA Atmospheric and Space Environments Conference, June 22-25, Dallas, TX, AIAA-2015-3021.
McClain, S.T., Vargas, M., Kreeger, R.E., and Tsao, J.-C., (2015), “A Reevaluation of Appendix C Ice Roughness Using Laser Scanning,” SAE 2015 International Conference on Icing of Aircraft, Engines, and Structures, June 22-25, Prague, Czech Republic, SAE2015-01-2098.
Shannon, T.A., McClain, S.T., (2015), “Convection from a Simulated NACA 0012 Airfoil with Realistic Ice Accretion Roughness Variations,” SAE 2015 International Conference on Icing of Aircraft, Engines, and Structures, June 22-25, Prague, Czech Republic, SAE2015-01-2097.
Brown, C.P., Wright, L.M., and McClain, S.T., (2015), “Comparison of Staggered and In-Line V-Shaped Dimple Arrays using S-PIV,” Proceedings of ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, June 15-19, Montreal, Canada, GT2015-43499.
McClain, S.T., (2015), “Characterization of Turbine Vane Roughness Variations using Self-Organizing Maps,” Proceedings of ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, June 15-19, Montreal, Canada, GT2015-42242.
S. T. McClain, C.W. Walker, and L. Tecson, (2014), “Infrared and Hot-Wire Investigations of Ice Roughness Induced Transition,” Presented at the 6th AIAA Atmospheric and Space Environments Conference, June 16-20, Atlanta, GA, AIAA-2014-2465.
C. W. Walker, S. T. McClain, and T. A. Shannon, (2014), “Convection from Ice Roughness with Varying Flux Boundary Conditions,” Presented at the 6th AIAA Atmospheric and Space Environments Conference, June 16-20, Atlanta, GA, AIAA-2014-2463.
S. T. McClain, D. Reed, M. Vargas, R. E. Kreeger, and J.-C. Tsao, (2014), “Ice roughness in Short Duration SLD Icing Events,” Presented at the 6th AIAA Atmospheric and Space Environments Conference, June 16-20, Atlanta, GA, AIAA-2014-2330.
L. Tecson and S. T. McClain, “Convective Enhancement of Surfaces with Realistic Ice Roughness Distributions,” Presented at the 5th AIAA Atmospheric and Space Environments Conference, June 24-27, 2013, San Diego, CA, AIAA-2013-3060.
L. Tecson and S. T. McClain, “Modeling of Realistic Ice Roughness Element Distributions to Characterize Convective Heat Transfer,” Presented at the 5th AIAA Atmospheric and Space Environments Conference, June 24-27, 2013, San Diego, CA, AIAA-2013-3059.
S. T. McClain and R. E. Kreeger, “Assessment of Ice Shape Roughness Using a Self-Organizing Map Approach,” Presented at the 5th AIAA Atmospheric and Space Environments Conference, June 24-27, 2013, San Diego, CA, AIAA-2013-2546.
L. M. Wright, S. T. McClain, C. P. Brown, W. V. Harmon, “Assessment of a Double Hole, Anti-Vortex Film Cooling Geometry Using S-PIV and PSP,” Presented at the 2013 ASME Turbo Expo, June 3-7, 2013, San Antonio, TX, GT2013-94614.
S. T. McClain, L. Case, and C. P. Brown, “A Flap-Based Gust Generation System for Hair Sensor Investigations,” Presented at the 51st Aerospace Sciences Meeting, Jan. 7-10, Grapevine, TX, AIAA-2013-1131.
L. Case and S. T. McClain, 2013, “Image Analysis to Determine the Response of Passive Surface Hairs,” Presented at the 51st Aerospace Sciences Meeting, Jan. 7-10, Grapevine, TX, AIAA-2013-0628.
S. T. McClain, L. Case, and B. T. Dickinson, “Response of Passive Surface Hairs in Steady Falkner-Skan Boundary Layers,” Presented at the 6th AIAA Flow Control Conference, 25-28 June, 2012, New Orleans, LA, AIAA-2012-3047.
B. T. Dickinson, S. T. McClain, and L. Case, “The Dynamic Response of of Quasi-Steady Hair-Like Structures in Oscillatory Boundary Layer Flows,” Presented at the 6th AIAA Flow Control Conference, 25-28 June, 2012, New Orleans, LA, AIAA-2012-3048.
S. T. McClain, S. Mart, and W. Anderson, “Roughness Temporal Response in a Turbulent Thermal Boundary Layer,” Presented at the 43rd AIAA Thermophysics Conference, 25-28 June, 2012, New Orleans, LA, AIAA-2012-3109.
S. R. Mart and S. T. McClain, “Protuberances in a Turbulent Thermal Boundary Layer,” Presented at the 2011 ASME TurboExpo, June 6-10, 2011, Vancouver, B.C., GT2011-45180.
S.R. Mart, S. T. McClain, and L. M. Wright, “Turbulent Convection from Deterministic Roughness Distributions with Varying Thermal Conductivities,” Presented at the 2011 ASME TurboExpo, June 6-10, 2011, Vancouver, B.C., GT2011-45146.
L. M. Wright, S. T. McClain, and M. D. Clemenson, “PIV Investigation of the effect of Freestream Turbulence Intensity on Film Cooling from Fanshaped Holes,” Presented at the 2011 ASME TurboExpo, June 6-10, 2011, Vancouver, B.C., GT2011-46127.
K. H. Macfarlan and S. T. McClain, “The Use of Mathcad Functions in Teaching an Undergraduate Aerospace Propulsion Course,” Presented at the 2011 ASME TurboExpo, June 6-10, 2011, Vancouver, B.C., GT2011-46094.
G. Narvaez and S. T. McClain, "Flow Over a Distribution of Obliquely Aligned Elements: Part I – Experimental Investigation," Presented at the 5th AIAA Flow Control Conference, Chicago, IL, June 28-July 1, 2010, AIAA-2010-4710.
G. Narvaez and S. T. McClain, "Flow Over a Distribution of Obliquely Aligned Elements: Part II – Computational Simulations," Presented at the 5th AIAA Flow Control Conference, Chicago, IL, June 28-July 1, 2010, AIAA-2010-4711.
L. M. Wright, S. T. McClain, and M. D. Clemenson, "Effect of Freestream Turbulence Intensity on Film Cooling Jet Structure and Surface Effectiveness using PIV and PSP," Presented at the 2010 ASME TurboExpo: Power for Land, Sea, and Air, June 14-18, 2010, Glasgow, UK, GT2010-23054.
L. M. Wright, S. T. McClain, and M. D. Clemenson, "Effect of Density Ratio on Flat Plate Film Cooling with Shaped Holes Using PSP," Presented at the 2010 ASME TurboExpo: Power for Land, Sea, and Air, June 14-18, 2010, Glasgow, UK, GT2010-23053.
K. W. Van Treuren and S. T. McClain, "The Challenges of High Altitude Gas Turbine Engine Cycles," Presented at the 2010 ASME TurboExpo: Power for Land, Sea, and Air, June 14-18, 2010, Glasgow, UK, GT2010-23490.
S. T. McClain, "Advanced Thermodynamics Applications Using Mathcad," Presented at the ASME 2009 International Mechanical Engineering Congress & Exposition, November 13-19, Lake Buena Vista, FL, IMECE2009-11313.
S. R. Mart and S. T. McClain, "Heat Transfer from Protuberances and Simulated Ice Accretion Roughness Elements," Presented at the ASME 2009 International Mechanical Engineering Congress & Exposition, November 13-19, Lake Buena Vista, FL, IMECE2009-10825.
S. T. McClain, P. Tino, and R. E. Kreeger, "Ice Shape Characterization Using Self-Organizing Maps," Presented at the 1st AIAA Atmospheric and Space Environments Conference, San Antonio, TX, June 22-25, 2009, AIAA-2009-3865.
S. T. McClain, S. R. Wheatley, and J. R. Oldenburg, "Refrigeration System Modeling for the NASA Icing Research Tunnel," Presented at the 1st AIAA Atmospheric and Space Environments Conference, San Antonio, TX, June 22-25, 2009, AIAA-2009-3866.
S. T. McClain, B. K. Hodge, and J. P. Bons, "The Effect of Element Thermal Conductivity on Turbulent Convective Heat Transfer from Rough Surfaces," Presented at the 2009 ASME TurboExpo: Power for Land, Sea, and Air, June 8-12, 2009, Orlando, FL, GT2009-59458.
S. R. Mart and S. T. McClain, "New Application Technique for Gold Deposited Mylar Film," Presented at the 2009 ASEE Gulf-Southwest Region Conference, Waco, TX, March 18-20, 2009, ASEEGSW2009-TB3-4.
D. Blekhman and S. T. McClain, “Mathematical Modeling of a Molten-Carbonate Fuel Cell Using MathCAD,” Presented at the 2008 ASME Fuel Cell Science, Technology, and Engineering Conference, Denver, CO, June 16-18, 2008, FuelCell2008-65119.
S. T. McClain and R. W. Peters, "A Biodiesel Mini Baja Vehicle and Student Competition," Presented at the 2008 SAE World Congress, Detroit, MI, April 14-17, 2008, SAE Paper No. 2008-01-1293.
S. T. McClain, R. A. Harris, and R. W. Peters, "A Fuel Consumption Simulator for Teaching Efficient Driving Practices," Presented at the 2008 SAE World Congress, Detroit, MI, April 14-17, 2008, SAE Paper No. 2008-01-1291.
C. P. Bhatt and S. T. McClain, "Assessment of Uncertainty in Equivalent Sand-Grain Roughness Methods," Presented at the 2007ASME International Mechanical Engineering Congress and Exposition, November 11-15, 2007, Seattle, Washington, IMECE2007-42105. Received the 2007 W. M. Rohsenow Award for best presentation on gas-turbine heat transfer.
S. T. McClain and C. B. Smitherman, “MathCAD
Functions for the Thermodynamics Properties of Moist Air, Ammonia,
Propane, and R-22,” Presented at the 2007 ASEE Annual
Conference and Exposition, Honolulu, HI, June 24-27, 2007, ASEE2007-0802.
S. T. McClain, “Being Dr. Evil: Engaging Students with Humorous Project
Premises,” Presented at the 2007 ASEE Annual
Conference and Exposition, Honolulu, HI, June 24-27, 2007, ASEE2007-0801.
S. T. McClain and J. M. Brown, “Reduced Rough-Surface Parameterization for Use with the Discrete-Element Model,” Presented at the ASME TurboExpo 2007: Power for Land, Sea and Air, May 14-17, 2007, Montreal, Canada, GT2007-27588.
S. T. McClain, "A MathCAD Function Set for Solving Thermodynamics Problems," Presented at the 2006 ASEE Annual Conference and Exposition, Chicago, IL, June 18-21, 2006, ASEE2006-0044.
S. T. McClain, "A MathCAD Function Set for Solving Thermodynamics Problems," Presented at the 2006 ASEE Southeastern Section Conference, Tuscaloosa, AL, April 2-4, 2006.
S. T. McClain, M. Vargas, R. E. Kreeger, and J. C. Tsao, "Heat Transfer from Protuberances and Roughness Elements in Laminar and Turbulent Flow: Part I—A Reexamination of Henry et al.," Presented at the 44th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, January 9-12, 2006, AIAA-2006-1082.
S. T. McClain, M. Vargas, R. E. Kreeger, and J. C. Tsao, "Heat Transfer from Protuberances and Roughness Elements in Laminar and Turbulent Flow: Part II—Heat Transfer Correlations," Presented at the 44th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, January 9-12, 2006, AIAA-2006-1083.
J. P. Bons, S. T. McClain, Z. J. Wang, X. Chi, and T. I. Shih "A Comparison of Approximate vs. Exact Geometrical Representations of Roughness for CFD Calculations of Cf and St," Presented at the 2005 ASME International Mechanical Engineering Conference and Exposition, November 5-11, 2005, Orlando, Florida, IMECE2005-81495.
R. E. Kreeger, M. Vargas, and S. T. McClain, "Heat Transfer over Roughness Elements Larger than the Boundary Layer," Presented at the AIAA 4th Theoretical Fluids Meeting, Toronto, ON, June 22-25, 2005.
S. T. McClain, "MathCAD Functions for Thermodynamic Analysis of Ideal Gases," Presented at the 2005 ASEE National Conference and Exposition, Portland, Oregon, June 12-15, 2005.
S. T. McClain, "MathCAD Functions for Thermodynamic Analysis of Ideal Gases," Presented at the 2005 ASEE Southeastern Section Conference, Chattanooga, TN, April 3-5, 2005.
A. S. McClain, T. G. Oliver, S. T. McClain, B. J. Stephens, Z. B. Dwyer, and D. Rigney, "Hovercraft Design Experiences in a Freshman Engineering Course at UAB," Presented at the 2005 ASEE Southeastern Section Conference and Exposition, Chattanooga, TN, April 3-5, 2005.
S. T. McClain, "The Use of MathCAD Functions for Thermochemical Analysis of the CHON System in an Internal Combustion Engines Course," Presented at the 2004 ASEE Annual Conference and Exposition, Salt Lake City, UT, June 20-23, 2004, ASEE ME Division "Best Paper Award" Winner, ASEE2004-0731.
S. T. McClain and B. Cain, “Teaching Modern Data Acquisition Systems with a
Departmental Requirement for Student Laptop Ownership,” Presented at the
2003 ASEE Annual Conference and Exposition,
Nashville, TN, June 22-25. ASEE2003-0427.
S. T. McClain, B. K. Hodge, and J. P. Bons, “Predicting Skin Friction for
Turbulent Flow over Randomly-Rough Surfaces Using the Discrete-Element Method:
Part I—Surface Characterization,” Proceedings of the ASME/JSME Joint Fluids Engineering Conference, Vol. 2 B,
2003, pg 1271-1281, FEDSM2003-45411.
S. T. McClain, B. K. Hodge, and J. P. Bons, “Predicting Skin Friction for
Turbulent Flow over Randomly-Rough Surfaces Using the Discrete-Element Method:
Part II—Skin Friction Validation,” Proceedings of the ASME/JSME Joint Fluids Engineering Conference, Vol. 2 B,
2003, pg 1283-1292, FEDSM2003-45412.
S. T. McClain, B. K. Hodge, and J. P. Bons, “Predicting Heat Transfer for
Turbulent Flow over Randomly-Rough Surfaces using the Discrete-Element Method,”
Presented at the 6th ASME/JSME Thermal Engineering Joint Conference, Honolulu, HI, March 16-20, 2003,
TED-AJ03-595.
S. T. McClain, “It Does Not Have To Be Rocket Science—But Sometimes It Is,”
Presented at the ASEE National Conference and
Exposition, Montreal, Quebec, Canada, June 16-19, 2002, ASEE ME Division "Best Paper Award" Winner, ASEE2002-1131. (The infamous "potato gun" paper.)
S. T. McClain, “It Does Not Have To Be Rocket Science—But Sometimes It Is,” Presented at the ASEE Southeast Section Conference, Gainesville, FL, April 7-9, 2002.
L. M. Chamra, S. T. McClain, and S. Tang, “The Use of MathCad in a Graduate Level Two-Phase Flow and Heat Transfer Course,” Presented at the National ASEE Conference, Albuquerque, NM, June 24-27, 2001.
Books
Contributor to Fundamentals of Engineering Thermodynamics, by M. J. Moran and H. N. Shapiro, J. Wiley and Sons, Inc., 6th ed., 2007.
S. T. McClain, R. A. Harris, R. W. Peters, and M. Dillavou, Practices for Maximizing Fuel Economy: Prepared for Alabama Students in Driver’s Education Courses, Birmingham, AL, The University of Alabama at Birmingham, 2006.
Technical Reports
S. T. McClain, "IRT Heat Exchanger and Refrigeration Plant Performance Modeling and Prediction," NASA Glenn Research Center, February, 8, 2008.
S. T. McClain and R. W. Peters, “Consumer Car Care Practices for Maximizing Fuel Economy,” Alabama Department of Economic and Community Affairs (ADECA), October 30, 2006.
S. T. McClain, “Confidential Title,” for Applied Surgical, LLC, January 31, 2005.
S. T. McClain, “Analysis of Casting Cooling in a Forced Convection Chamber,” for the Vulcan Engineering Company, October 19, 2004.
S. T. McClain, “Heat Transfer from Protuberances and Roughness Elements in Laminar and Turbulent Flow: A Reexamination of Henry et al.,” presented to the Icing Research Branch at the NASA Glenn Research Center, August 15, 2004.
M.S. Thesis and Ph.D.
Dissertation
S. T. McClain, “A Discrete-Element Model for Turbulent Flow Over Randomly-Rough
Surfaces,” Ph.D. Dissertation, Department of Mechanical Engineering,
Mississippi State University, May 2002.
S. T. McClain, "A Study of Porosity Quantification Techniques and Pore
Morphology in Aluminum Alloy Castings," MS Thesis, Department of
Mechanical Engineering, Mississippi State University, May 1997.
Service
Professional and Honor Societies:
American Institute of Aeronautics and Astronautics (AIAA), Associate Fellow (2018)
American Society of Mechanical Engineers (ASME)
American Society of Engineering Educators (ASEE)
Service to University:
Faculty Advisor for the Zeta Chi Chapter of Delta
Sigma Phi Fraternity: BETTER MEN. BETTER LIVES. (2005-2007)
BU
Courses
ME 2345 Thermodynamics
ME 3345 Applied Thermodynamics
ME 3420 Instrumentation and Measurements
ME 4335 ME Laboratory
ME 4336 Energy Systems Design
ME 4396 Internal Combustion Engines
ME 5338 Experimental Methods in Fluids and Heat Transfer
ME 5340 Intermediate Fluid Mechanics
ME 5341 Intermediate Heat Transfer
Links
Mississippi State University (Go
State!!!)
The University of Memphis (Go Tigers!!!)
ASME
ASEE
Pi Tau Sigma
Tau Beta Pi
Dilbert
People
The following people have been instrumental in my intellectual and professional
development. I thank each of them for their influence in my life.
Anne S. McClain
Kenneth L. McClain
Cecil C. Russeau
William S. Janna
B. K. Hodge
W. Glenn
Steele
Robert P.
Taylor
John T.
Berry
Graduate Students (a.k.a. "the Minions" or "the Mortys")
Student: |
Expected Graduation Date: |
Thesis or Project Topic: |
Scott Howard |
Dec. 2004 |
A Hydraulic Rear Wheel Dynamometer for the SAE Mini Baja Team (non-thesis) |
Vinay Kashyap |
Aug. 2005 |
The Generation and Verification of Roughness on a Parametric Surface |
Patrick Collins |
Dec. 2005 |
A Reevaluation of Roughness Density Parameters Using Concepts from the Discrete-Element Approach (non-thesis) |
Jason Brown |
Dec. 2006 |
Reduced Rough-Surface Parameterization for Use with Discrete-Element Model (non-thesis) |
Chinmay Bhatt |
May 2007 |
Assessment of Uncertainty in Equivalent Sand-Grain Roughness Methods |
R. Aaron Harris |
May 2007 |
A Fuel Consumption Simulator for Teaching Efficient Driving
Practices |
Aubrey A. Scott |
Aug. 2007 |
Fully-Developed Flow over Randomly-Rough Surfaces (non-thesis) |
Srinivasa Rao Damaraju |
Aug. 2007 |
Simulation of the Internal Conduction in a Heated NACA 0012 Airfoil (non-thesis) |
Shannon R. Wheatley |
Dec. 2007 |
Simulation of the NASA Icing Research Tunnel Refrigeration Plant |
Steven R. Mart |
May 2009 |
Heat Transfer from Protuberances and Simulated Ice Accretion Roughness Elements in Laminar Flow (B.S. Honors Thesis) |
Gilbert Narvaez |
May 2010 |
Flow Control using Obliquely Aligned Element Distributions |
Steven R. Mart |
May 2011 |
The Effect of Roughness Element Thermal Conductivity on Turbulent Convection |
Lance Case |
Aug. 2012 |
Response of Passive Surface Hairs in Steady and Unsteady Falkner-Skan Boundary Layers |
Logan Tecson |
May 2013 |
Convective Heat Transfer from Surfaces with Realistic Ice Roughness |
| Christopher Walker | Aug. 2014 | Convection from Manufactured Ice Roughness with Varying Flux Boundary Conditions |
| Timothy Shannon | Aug. 2015 | Convection from Surfaces with Realistic Ice Roughness in Simulated Airfoil Accelerating Flow |
| Michael Hughes | Dec. 2015 | Convection from Ice Roughness in Stagnation Region Flows |
| Matt Hawkins | Dec. 2016 | Convection from Surfaces with Real Unwrapped Scanned Ice Accretion Roughness |
| Jaime McCarrell | Dec. 2017 | Convection from Laser-Scanned Ice Roughness at Multiple Accretion Event Times |
| John-Mark Clemenson | May 2018 | A Method for Constructing Analog Roughness Patterns to Replicate Ice Accretion Characteristics |
| Zac Williams | May 2018 | Convection from Surfaces with Real and Analog Ice Accretion Roughness at Higher Reynolds Numbers |
| Taber Miyauchi | Dec. 2018 | Frost Roughness Measurements using Photogrammetry |
| Timothy Shannon (Ph.D.) | Dec. 2018 | Correlation of Skin Friction and Convective Heat Transfer on Surfaces with Realistic Roughness Variations (Dissertation) |
| Cameron Watkins | Dec. 2019 | Turbulent Flow Characteristics over Realistic Ice Roughness on Simulated NACA 0012 Airfoils |
| Emily Cinnamon | May 2020 | X-Wire Examination of Turbulent Internal Flow in Simulated Additively Manufactured Turbine Blade Cooling Channels |
| Salahuddin Ahmed | Aug. 2020 | Photogrammetric Measurements of Frost Roughness Evolution on a Cold-Soaked Wing Tank Model |
| Gabriel Stafford | Dec. 2020 | Convection Measurements in Scale Models of Additively Manufactured Turbine Blade Cooling Passages |
| Colton Jones | Dec. 2020 | An Air Assisted Spray Bar System for the Liquid Film and Cloud Wind Tunnel (non-thesis) |
| Nicholas Forslund | Dec. 2021 | Variation of Cold Soaked Fuel Frost with Location along a Flat Plate |
| Ryan Boldt (Ph.D.) | Aug. 2024 | Tomographic Flow Measurements in Passages with Scaled Additive Manufacturing Roughness Characteristics |
Last update August 13, 2024