Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
661220 | International Journal of Heat and Mass Transfer | 2009 | 8 Pages |
Abstract
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 key critical time behaviour.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
R.I. Hickson, S.I. Barry, G.N. Mercer,