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The Airflow Field Around An Operating Tire and Its Effect on Tire Power Loss
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English
Abstract
The airflow direction, velocity, and turbulence level were measured around the left front tire of a passenger car operating on-road over the normal driving speed range. Both photographic and hot-wire anemometer techniques were employed. The measured airflow field, and other idealized ones, were used to select appropriate values for the tire heat transfer coefficient from previous GMR work. Tire power loss was then calculated with the GMR Combined Thermo-Mechanical Model to assess the importance of the airflow field on tire power loss. It was found that for the range of realistic flow conditions, tire power loss could be changed by up to 6% by the flow conditions alone.
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Citation
Oswald, A. and Browne, L., "The Airflow Field Around An Operating Tire and Its Effect on Tire Power Loss," SAE Technical Paper 810166, 1981, https://doi.org/10.4271/810166.Also In
References
- Browne A. L. Wickliffe L. E. “Convective Heat Transfer Coefficients at the Tire Surface: A Parametric Study” General Motors Research Laboratories Publication GMR-3261 May 30 1980
- Whicker D. Browne A. L. Segalman D. J. “The Structure and Use of the GMR Combined Thermo-Mechanical Tire Power Loss Model” Society of Automotive Engineers Paper No. 810164 February 1981
- Browne A. L. Arambages A. “Modeling the Thermal State of Tires for Power Loss Calculations” Society of Automotive Engineers Paper No. 810163 February 1981
- Whicker D. Rohde S. M. “A New Method for the Finite Element Modeling of Tire Deformations” Society of Automotive Engineers Paper No. 810161 February 1981
- Clark S. K. Loo M. “Temperature Effects on Rolling Resistance of Pneumatic Tires” Department of Transportation, Interim Report D0T-TSC-76-3 April 1976