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One-domain approach for heat transfer between a porous medium and a fluid

机译:在多孔介质和流体之间进行热传递的单域方法

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摘要

The purpose of this work is to investigate the extents of the local thermal equilibrium (LTE) assumption at the fluid-porous medium boundary (i.e., in a heterogeneous region). The analysis is performed in terms of the one-domain approach. Therefore, we posed and solved the associated closure problems in order to compute the spatial dependence of the effective coefficients at the fluid-porous medium boundary. Steady-state comparisons with direct numerical simulations evidence that the LTE is, in general, justifiable everywhere in the system, i.e., in both homogeneous and heterogeneous regions.
机译:这项工作的目的是研究在流体-多孔介质边界(即在异质区域)的局部热平衡(LTE)假设的程度。分析是根据单域方法进行的。因此,我们提出并解决了相关的封闭问题,以便计算有效系数在流体-多孔介质边界的空间依赖性。与直接数值模拟的稳态比较表明,LTE通常在系统中的任何地方,即在同质和异质区域都是合理的。

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