Volume 17, Issue 3 (2017)                   Modares Mechanical Engineering 2017, 17(3): 446-450 | Back to browse issues page

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Sobhani H, Azimi A. Numerical simulation of the non-Fourier heat conduction of the single-phased ‎and dual-phased lagging in sand: local thermal equilibrium. Modares Mechanical Engineering. 2017; 17 (3) :446-450
URL: http://journals.modares.ac.ir/article-15-9-en.html
1- shahid Chamran University of Ahvaz
2- َAssistant Professor of Mechanical Engineering- Shahid Chamran University
Abstract:   (1400 Views)
In recent years, various studies about non-Fourier heat transfer in various media including porous media have been performed that have provided ‎contradictory results. In this article, the non-Fourier heat transfer in the porous media, especially the sand has been examined. In this regard, the ‎numerical solution of a non-Fourier thermal conductivity with a pulsed heat flow boundary condition has been studied and this condition for the non-‎Fourier models has been discretized and applied in the non-Fourier manner. In this way, first, the governing equation for the DPL model has been ‎solved with an explicit finite difference numerical method and its results have been studied and compared with the experimental data [1]. However, in ‎the process of numerical solution of the DPL model, the grid study has been performed before anything. Also, the Single-Phased Lagging (SPL) ‎model has been solved with an explicit numerical method and its results have been compared with the results of the DPL model and the experimental ‎data. In this article, like the reference [1], it has been shown that the DPL model can model the non-Fourier heat transfer so much better that the ‎Cattaneo’s model. ‎
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Article Type: Research Note | Subject: Heat & Mass Transfer
Received: 2017/01/2 | Accepted: 2017/01/25 | Published: 2017/02/27

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