A SCALE ANALYSIS APPROACH TO THERMAL CONTACT RESISTANCEAuthors: M. Bahrami, J. R. Culham, and M. M. Yovanovich
Company: University of Waterloo
Date Published: 5/26/2004 Conference: Academic Student Compendium
The present model allows TCR to be predicted over the entire range of nonconforming rough contacts from conforming rough to smooth Hertzian contacts. It is demonstrated that the geometry of heat sources on a half-space for microcontacts is justifiable and that the effective micro thermal resistance is not a function of surface curvature. A comparison of the present model with 604 experimental data points, collected by many researchers during the last forty years, shows good agreement for the entire range of TCR. The data covers a wide range of materials, mechanical and thermophysical properties, micro and macro contact geometries, and similar and dissimilar metal contacts.
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