Analytical solution is developed to calculate the thermal constriction resistance for contacts randomly distributed on the surface of a laterally insulated semi-infinite square prism. The contacts are modeled by circular spots with different radii and uniform heat flux. We analyze the evolution of the thermal constriction resistance as a function of the number of contacts, the relative contact size, and the dispersion of radii of spots. We show that the thermal constriction resistance for random contacts is a few tens of percents greater than that of the regular contacts.
Thermal Resistance for Random Contacts on the Surface of a Semi-Infinite Heat Flux Tube
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division March 5, 2002; revision received January 31, 2003. Associate Editor: A. F. Emery.
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Laraqi , N. (May 20, 2003). "Thermal Resistance for Random Contacts on the Surface of a Semi-Infinite Heat Flux Tube ." ASME. J. Heat Transfer. June 2003; 125(3): 532–535. https://doi.org/10.1115/1.1571081
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