MEASUREMENTS OF AIR FLOW VELOCITY DISTRIBUTIONS INSIDE A ROLLING PNEUMATIC TIRE
The research reported on here is concerned with the subject of air flow and temperature buildup in a pneumatic tire. Its ultimate objectives are to understand the basic mechanisms by which energy delivered to the tire is converted to heat, and to quantify the contribution to rolling resistance that is made by this energy-conversion path. Direct measurement of the heat-transfer rate is very difficult, because the tire surface undergoes such large deformations. The approach being taken here in to make measurements of the velocity distributions, and to relate these to the heat-transfer rate by numerical modeling of the flow field. This paper contains experimental results for the velocity distributions. The numerical modeling effort is not yet complete; however, a crude estimate of the heat-transfer rate can be made on the basis of the measured mass flow rates. This estimate indicates that the heat transfer to the contained air is comparable to that occurring on the external surface of the tire.
- Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
- International Congress and Exposition, Detroit, Michigan, February 27-March 2, 1984.
Warrendale, PA United States 15096
- RAE, W J
- Skinner, G T
- Publication Date: 1984
- Features: Figures; References;
- Pagination: 7 p.
- TRT Terms: Air; Flow; Heat transfer; Mathematical models; Measurement; Rolling resistance; Tires; Velocity
- Uncontrolled Terms: Air flow
- Old TRIS Terms: Velocity distribution
- Subject Areas: Safety and Human Factors; Vehicles and Equipment;
- Accession Number: 00393016
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: SAE 840066, HS-037 640
- Files: HSL, USDOT
- Created Date: Feb 28 1985 12:00AM