This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Comparing Static and Dynamic Testing Techniques for the Crosswind Sensitivity of Road Vehicles
Annotation ability available
Sector:
Language:
English
Abstract
An accurate simulation of a ground vehicle interacting with a crosswind gust can be achieved by using a moving model mounted on a track such that it can traverse the working section of a conventional atmospheric boundary layer wind tunnel. This paper will briefly describe the facility that is being developed at Cranfield University and detail comparisons between static and dynamic data from tests on three basic model configurations. Under the same nominal wind input, data from static tests compares well with that from dynamic tests at yaw angles below 15°. At higher yaw angles, after the onset of “large scale” separation, the dynamic values of the forces and moments become larger than the static values.
Recommended Content
Citation
Macklin, A., Garry, K., and Howell, J., "Comparing Static and Dynamic Testing Techniques for the Crosswind Sensitivity of Road Vehicles," SAE Technical Paper 960674, 1996, https://doi.org/10.4271/960674.Also In
Vehicle Aerodynamics: Wind Tunnels, Cfd, Aeroacoustics, and Ground Transportation Systems
Number: SP-1145; Published: 1996-02-01
Number: SP-1145; Published: 1996-02-01
References
- van den Hemel H J M Elink Schuurman R Riemersma J B J Blaaw G J “The way was long, the wind was cold” Volvo Car BV TNO Road Vehicles Research Institute
- Hogue J R “Aerodynamics of Six passenger Vehicles obtained from Full Scale Wind Tunnel Tests” SAE, 800142 Society of Automobile Engineers Inc. Michigan 1980
- Barth R “Effect of Unsymmetrical Wind Incidence on Aerodynamic Forces Acting on Vehicle Models and Similar Bodies” MIRA Trans 15/60 from ATZ March 1960 62 3 and 4 30 85 89 95
- Grotewohl A “Investigating the effects of Crosswind on Passenger Vehicles (Part 1)” MIRA Trans 3/68 from ATZ Nov. 1967 69 11 377 381
- Bearman P W Mullarkey S P “Aerodynamic Forces on Road Vehicles Due to Steady Side Winds and Gusts” Conference on Vehicle Aerodynamics 4.1 4.12 Loughborough 1994
- Dominy R G “A Technique for the Investigation of Transient Aerodynamic Forces on Road Vehicles in Crosswinds” Proceedings of the Institution of Mechanical Engineers 205 1991
- Garry K P Cooper K R “Comparison of Quasi-Static and Dynamic Wind Tunnel Measurements on Simplified Tractor-Trailer Models” Journal of Wind Engineering and Industrial Aerodynamics 22 185 194 1986
- Buning H Beauvais F N “The Transient Character of Aerodynamic Side Force and Yawing Moment on an Automobile in a Wind Gust” 1 FISITA Munchen 12-16 Jun. 1966
- Stewart M J “Transient Aerodynamic Forces on simple Road Vehicle Shapes in Simulated Crosswind Gusts” MIRA 1977/5
- Cairns R S “Lateral Aerodynamic Characteristics of Motor Vehicles in Transient Crosswinds” Cranfleld University 1994
- Howell J P “Gust Response of a High Speed Train Model” Aerodynamics of Transportation II. ASME 1983
- Baker C J “High Sided Articulated Road Vehicles in Strong Crosswinds” Journal of Wind Engineering and Industrial Aerodynamics 31 67 85 1988
- Coleman S A “The Aerodynamics of Ground Vehicles in Cross Winds” University of Nottingham 1990
- McCroskey W J McAlister K W Pucci S L Lambert O Indergrand R F Carr L W “Dynamic Stall on Advanced Airfoil Sections” Journal of American Helicopter Society 26 3 40 50 1981