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Critical times in multilayer diffusion. Part 2: Approximate solutions

Hickson, Roslyn; Barry, Steven; Mercer, Geoffry


Traditional averaging methods for multilayer diffusion give inaccurate approximations of critical time behaviour, such as the heating time of a material. In particular, they fail to capture the importance of layer order. We use a perturbation expansion of an exact solution to find a simple approximate solution which accurately describes the critical time for transport across multiple layers. This approximate solution is then used to find a correction for the averaging method which captures the...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: International Journal of Heat and Mass Transfer
DOI: 10.1016/j.ijheatmasstransfer.2009.08.012


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