Solutions to stationary and moving heat sources on a half space are reviewed for rectangular and elliptic contacts. The effects of shape, heat flux distribution, and orientation with respect to the direction of motion are examined. The dimensionless thermal resistance is shown to be a weak function of heat source shape if the square root of contact area is used as a characteristic length scale. Simple expressions are developed for calculating total thermal resistances of non-circular moving heat sources by combining asymptotic solutions for large and small values of the Peclet number. Both uniform and parabolic heat flux distributions are examined. A model is developed for predicting average or maximum flash temperatures of real sliding contacts. Comparisons of the proposed model are made with numerical solutions for two cases involving non-circular contacts.
Thermal Resistance Models for Non-Circular Moving Heat Sources on a Half Space
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division April 24, 2000; revision received January 8, 2001. Associate Editor: A. Bejan.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Muzychka, Y. S., and Yovanovich, M. M. (January 8, 2001). "Thermal Resistance Models for Non-Circular Moving Heat Sources on a Half Space ." ASME. J. Heat Transfer. August 2001; 123(4): 624–632. https://doi.org/10.1115/1.1370516
Download citation file:
- Ris (Zotero)
- Reference Manager