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Aerodynamic Disturbances Encountered in Highway Passing Situations
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English
Abstract
Measurements are made of the unsteady aerodynamic forces and moments acting on a 1/ 10-scale intermediate sedan as it is passed by buses and trucks in the influence of several values of ambient crosswind. These measurements are made on the “Highway Aerodynamic Test Facility,” a high-speed moving model facility built by Developmental Sciences, Inc., under a DOT-NHTSA contract. In this study, both the metric and disturbing models are traveling at actual highway speeds (70 mph) when the measurements are made. The accuracy of this method, as well as new techniques for improving the signal-to-noise, are discussed.
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Citation
Brown, G., "Aerodynamic Disturbances Encountered in Highway Passing Situations," SAE Technical Paper 730234, 1973, https://doi.org/10.4271/730234.Also In
References
- Brown G. J. Seemann G. R. “An Experimental Investigation of the Unsteady Aerodynamics of Passing Highway Vehicles.” Department of Transportation May 1972
- Colin P. E. “Impulsive Pressures in the Train Passing Problem.” von Karman Institute for Fluid Mechanics November 1969
- Beauvais F. N. “Transient Nature of Wind Gust Effects on an Automobile.” SAE Transactions 76 paper 670608
- Beauvias F. N. “Aerodynamic Inputs to a Parked Vehicle Caused by a Passing Bus.” SAE Transactions 79 1970 paper 700037
- Developmental Sciences, Inc. “Subway Aerodynamic and Thermodynamic Test (SAT) Facility Single-Track Aerodynamics.” August 1972