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首页> 外文期刊>Transport in Porous Media >Two-Phase Flow and the Capillarity Phenomenon in Porous Solids - A Continuum Thermomechanical Approach
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Two-Phase Flow and the Capillarity Phenomenon in Porous Solids - A Continuum Thermomechanical Approach

机译：多孔固体中的两相流动和毛细现象-连续热力学方法

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摘要

Two-phase flow and capillarity phenomenon in porous solids, well known in physics and engineering, are treated from a rigorous continuum thermomechanical point of view for the first time. A ternary model, consisting of a porous solid phase, a liquid phase, and a gas phase, is investigated within the framework of thermodynamics. The main result of the evaluation of the entropy principle turns out to be that the interaction forces between the solid, gas, and liquid phases are dependent on the free Helmholtz energy functions of the corresponding phases and on the gradient of the liquid density. The classical result for the driving volume force for raising a water column in a narrow tube against the force of gravity is contained in the general investigation.
机译：物理和工程领域众所周知的多孔固体中的两相流动和毛细现象，是首次从严格的连续热力学角度出发进行处理的。在热力学框架内研究了由多孔固相，液相和气相组成的三元模型。评估熵原理的主要结果是，固相，气相和液相之间的相互作用力取决于相应相的自由亥姆霍兹能量函数以及液体密度的梯度。常规研究中包含了提高体积的驱动力的经典结果，该驱动力用于克服重力使窄管中的水柱升起。

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