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Effect of thickness and physical properties of filmsonthe thermal behavior of a moving rough interface

Published online by Cambridge University Press:  22 March 2004

A. Baïri ,
J. M. García de María  and
N. Laraqi
A. Baïri*
Affiliation:
Department of Heat Transfer, University of Paris X, LEEE, EA. 387, 1 Chemin Desvallières, 92410 Ville d'Avray, France
J. M. García de María
Affiliation:
Departamento de Física Aplicada (EUITI), Universidad Politécnica de Madrid, Ronda de Valencia, 3, 28012 Madrid, Spain
N. Laraqi
Affiliation:
Department of Heat Transfer, University of Paris X, LEEE, EA. 387, 1 Chemin Desvallières, 92410 Ville d'Avray, France
*
abairi@u-paris10.fr
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Abstract

Films are used in a wide range of electronicand mechanical technologies. An analytical solution is developed in thispaper in order to investigate the effect of films on the thermal behavior atthe vicinity of a static or moving rough interface. The roughness is modeledby multiple circular contacts which are assumed identical and regularlydistributed over the interface according to a square net. The governingequations are solved by using the finite complex Fourier transform and thefinite cosine Fourier transform. The developed solution is explicit andallows to calculate the three-dimensional steady-state temperatureregardless of the velocity and the ratio of the real contact area to theapparent one. Thus, this solution can be also used for other applicationssuch as the moving laser beam. The comparisons performed show a goodagreement of our results with available models. We study the effects of:thermal properties of materials, the relative size of micro-contacts, thefilm thickness and the velocity, on the thermal behavior of the body.

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Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 26 , Issue 1 , April 2004 , pp. 29 - 34
Copyright
© EDP Sciences, 2004

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