This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Realistic Effects of Winds on the Aerodynamic Resistance of Automobiles
Annotation ability available
Sector:
Language:
English
Abstract
To date the effects of winds on the computed fuel economy of highway vehicles have been omitted or included in simple ways. This paper presents the results of a rigorous computer study on the realistic effects of winds upon the aerodynamic resistance, and consequently, upon the fuel consumption of automobiles for EPA driving cycles. The aerodynamic resistance was a function of the instantaneous wind direction and speed relative to the car. A wind spectrum having an annual speed of 10 mph will increase the zero-yaw aerodynamic resistance by 16% for the Combined driving cycle. Several simplistic approaches were evaluated against rigorously obtained results.
Recommended Content
| Technical Paper | Prediction of Dynamometer Power Absorption to Simulate Light Duty Truck Road Load |
| Technical Paper | Tire Rolling Resistance - A Speed Dependent Contribution |
Authors
Topic
Citation
Dayman, B., "Realistic Effects of Winds on the Aerodynamic Resistance of Automobiles," SAE Technical Paper 780337, 1978, https://doi.org/10.4271/780337.Also In
References
- Tatom J. W. Georgia Institute of Technology “A Tractor Mounted, Air Deployable, Aerodynamic Drag Reduction System,” Proceedings of the Conference/Workshop on the Reduction of the Aerodynamic Drag of Trucks California Institute of Technology Pasadena October 1974
- Buckley F. T. Sekscienski W. S. University of Maryland “Comparisons of Effectiveness of Commercially Available Devices for the Reduction of Aerodynamic Drag on Tractor-Trailers,” SAE Paper 750704 February 1975
- Cooper K. R. National Research Council, Canada “Wind Tunnel Investigations of Eight Commercially Available Devices for the Reduction of the Aerodynamic Drag on Trucks,” Roads and Transportation Association of Canada National Conference in Quebec September 1976
- Dayman B. “Computer Program for Determining the Effects of Realistic Winds on the Aerodynamic Resistance of Automobiles,” JPL Report No. 5030-175 December 1977
- Carr G. W. “Private Communique,” MIRA England April 1976
- Golding E. W. “The Economic Utilization of Wind Energy in Arid Areas,” Proceedings of the New Delhi Symposium on Wind and Solar Energy UNESCO October 1954