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On the Mechanical Design of the Rolling Road Addition to the CSUF Wind Tunnel
Technical Paper
2019-01-0651
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
For ground effect aerodynamic studies in wind tunnels, boundary layer growth over the floor of the test section is a large concern. Many different techniques have been used to remove this boundary layer, of which creating a moving ground plane is considered the best option. By creating a moving floor in the test section, the ground plane speed can be set to that of the free stream air speed, thus removing the boundary layer or at the very least mitigating the boundary layer growth. Several studies detail the aerodynamic design concerns for such devices, but little information exists on the mechanical design concerns. This work reviews lessons learned during a design study of a rolling road for the wind tunnel at California State University, Fullerton (CSUF) mainly focusing on the motor specification and cooling system design. First, an overview of the major systems that comprise a rolling road apparatus are given. Then, initial constraints and free-body diagrams are presented detailing the forces experienced by the rolling road. From these free-body diagrams, analytical equations are presented which estimate the rolling road motor power and torque requirements as well as cooling system requirements. A design study is conducted to investigate variable sensitivities and the previously derived equations are used to start initial design concepts for the CSUF rolling road. Potential areas for improvement are identified and future development work is discussed.
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Edirisinghe, R. and Mayoral, S., "On the Mechanical Design of the Rolling Road Addition to the CSUF Wind Tunnel," SAE Technical Paper 2019-01-0651, 2019, https://doi.org/10.4271/2019-01-0651.Data Sets - Support Documents
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References
- Sardou , M. ‘Reynolds Effect’ and ‘Moving Ground Effect’ Tested in a Quarter Scale Wind Tunnel over a High Speed Moving Belt Journal of Wind Engineering and Industrial Aerodynamics 22 245 270 1986 10.1016/0167-6105(86)90089-9
- Burgin , K. , Adey , P.C. , and Beatham , J.P. Wind Tunnel Tests on Road Vehicle Models Using a Moving Belt Simulation of Ground Effect Journal of Wind Engineering and Industrial Aerodynamics 22 227 236 1986 10.1016/0167-6105(86)90087-5
- Bearman , P.W. , De Beer , D. , Hamidy , E. , and Harvey , J.K. The Effect of a Moving Floor on Wind - Tunnel Simulation of Road Vehicles SAE Technical Paper 880245 1988 10.4271/880245
- Walter , J. , Bordner , J. , Nelson , B. , and Boram , A. The Windshear Rolling Road Wind Tunnel SAE Int, J. Passeng. Cars - Mech. Syst 5 1 2012 10.4271/2012-01-0300
- Hermans , C. and Hegen , S. DNW Innovations in Wind Tunnel Testing: New Moving Belt System for Large Low Speed Facility CEAS Aeronautical Journal 9 283 290 2018 10.1007/s13272-018-0285-4
- Wiedemann , J. and Potthoff , J. The New 5-Belt Road Simulation System of the IVK Wind Tunnels - Design and First Results SAE Technical Paper 2003-01-0429 2003 10.4271/2003-01-0429
- Bender , T. The New Lola Cars 50% Scale Aerodynamic Wind Tunnel SAE Technical Paper 2000-01-3547 2000 10.4271/2000-01-3547
- Borello , G. , Beccio , S. , Gollo , G. , and Quagliotti , F. Rolling Road Technology for Automotive High Speed Testing SAE Technical Paper 2000-01-0353 2000 10.4271/2000-01-0353
- Sauber F1 Team 2014 https://www.youtube.com/watch?v=szYlGeEx-OE&t=212s
- 2013 https://www.youtube.com/watch?v=eKkJN7WkCfw
- Eckert , W. , Singer , N. , and Vagt , J. The Porsche Wind Tunnel Floor-Boundary-Layer Control - a Comparison with Road Data and Results from Moving Belt SAE Technical Paper 920346 1992 10.4271/920346
- Collin , C. , Indinger , T. , and Muller , J. Moving Ground Simulation for High Performance Race Cars in an Automotive Wind Tunnel Society of Automotive Engineers of Japan 8 1 15 21 2017 10.20485/jsaeijae.8.1_15
- Budynas , R. and Nisbett , J. Shigley’s Mechanical Engineering Design New York McGraw Hill 2011 978-0-07-352928-8
- George , A.R. and Donis , J Flow Patterns, Pressures and Forces in the Underside of Idealized Ground Effect Vehicles Proceedings of the ASME Fluids Engineering Division Symposium on Aerodynamics of Transportation II 7 69 79
- Turner T. 1967
- Mack , S. , Indinger , T. , Adams , N. , and Unterlechner , P. The Ground Simulation Upgrade of the Large Wind Tunnel at the Technische Universität München SAE Technical Paper 2012-01-0299 2012 10.4271/2012-01-0299
- ARC Auto Research Center http://www.arcindy.com/wind-tunnel.html
- Incropera , F. and DeWitt , D. Introduction to Heat Transfer Fourth New York Wiley 2002
- Biswas , S.K. and Vijayan , K. Friction and Wear of PTFE - A Review Wear 158 193 211 1992
- Kays , P. and London , A. Compact Heat Exchangers Second New York McGraw-Hill International 1964
- Oriental Motor https://www.orientalmotor.com/technology/motor-sizing-calculations.html 2019