Continuous time random walks and heat transfer in porous media

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• 作者：Simon Emmanuel and Brian Berkowitz
• 关键词：Anomalous transport ; Convection ; Dispersion ; Non ; Fourier ; Thermal breakthrough
• 刊名：Transport in Porous Media
• 出版年：2007
• 出版时间：April, 2007
• 年：2007
• 卷：67
• 期：3
• 页码：413-430
• 全文大小：438 KB

文摘

An approach to describe heat transfer in porous media is presented on the basis of the continuous time random walk (CTRW) framework. CTRW is capable of quantifying both local equilibrium and non-equilibrium heat transfer in heterogeneous domains, and is shown here to match published experimental data of non-equilibrium thermal breakthrough. It is argued that CTRW will be particularly applicable to the quantification of heat transfer in naturally heterogeneous geological systems, such as soils and geothermal reservoirs.