Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
663665 | International Journal of Heat and Mass Transfer | 2005 | 9 Pages |
Abstract
The phase-lagging equation (PLE) is a new heat conduction equation which is different from the traditional heat equation since there exists a time lag of the heat-flux vector, while the damped wave equation (DWE) is its first-order approximation. In this article, we study the difference between the solutions of the PLE and the DWE by investigating the solutions of a test problem. Results show that the level of the solution obtained by the PLE is smaller in magnitude than the one obtained by the DWE, and that the DWE is a good approximation to the PLE when the time lag is small.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
S. Su, W. Dai, P.M. Jordan, R.E. Mickens,