Mathematical Model of Coupled Heat and Mass Transfer in Unsaturated Soils
Mathematical Model of Coupled Heat and Mass Transfer in Unsaturated Soils
复制标题
非饱和土传热传质耦合数学模型
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
Jinfeng
中科院分区：
文献类型：
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作者：
Chenyongping;Jinfeng
对复杂边界条件下非饱和土传热传质耦合问题进行了系统研究，利用非平衡热力学理论建立了非饱和土传热传质数学模型。体积含水量梯度、温度梯度、盐质量浓度和水蒸气压是影响非饱和土传热传质过程的主要驱动力。基于热力学分析和质量能量守恒原理，建立了一套质量能量方程开发了土柱的初始条件和边界条件。
A systematic study of coupled heat and mass transfer in unsaturated soils under complex boundary conditions wa carried out and a mathematical model of heat and mass transfer in unsaturated soils was established by non-equilibrium thermodynamic theory.The gradient of volumetric moisture ontent,the gradient of emperature, the salt mass concentration and vapor pressure were the primary driving fores influencing the process of heat and mass transfer in unsaturated soils .Based on the thermodynamic analysis and the mass and energy conservation principles,a set of mass and energy equations were develped,The intial and boundary conditions of soil coulumn for on dimension were aslo given out.