Effect Of Interface Thermal Resistance On Thermal Wave Phenomena In A Two-layer Composite Media
Price
Free (open access)
Transaction
Volume
24
Pages
10
Published
1999
Size
937 kb
Paper DOI
10.2495/CON990471
Copyright
WIT Press
Author(s)
Whey-Bin Lor and Hsin-Sen Chu
Abstract
This article numerically analyzes the heat conduction in a two layers composite media under an initial temperature pulse emanating from the exterior surface of one layer. The thermal wave model, which allows for both a transient heat flux and a finite speed of propagation, predicts significantly different results with those predicted by the Fourier's diffusion model at small time scale. The differences between the two heat transfer models diminish with increasing time. The thermal wave model further demonstrates that the internal reflection and transmission occur at the contact surface of the dissimilar material. To consider the thermal resistance at the contact interface, an interfacial-layer model (ILM) and a radiation h
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