A 2-PHASE MIXTURE MODEL OF LIQUID-GAS FLOW AND HEAT-TRANSFER IN CAPILLARY-POROUS MEDIA .1. FORMULATION
A 2-PHASE MIXTURE MODEL OF LIQUID-GAS FLOW AND HEAT-TRANSFER IN CAPILLARY-POROUS MEDIA .1. FORMULATION
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DOI：
10.1016/0017-9310(93)90094-m
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发表时间：
1993-07-01
影响因子：
5.2
通讯作者：
BECKERMANN, C
中科院分区：
文献类型：
--
作者：
WANG, CY;BECKERMANN, C
提出了一个毛细多孔介质中两相输运的模型，将两相看作是二元混合物的组分。守恒方程是从经典的分离流模型推导出来的，没有附加任何假设。本配方，由于其类似于传统的多组分混合物流动理论和显着减少所需的主要变量的微分方程的数量，提供了一种替代的理论分析和数值模拟的两相输运现象在多孔介质中。几个复杂的问题，如边界层两相流，共轭的两相和单相流在多个区域和瞬态流的框架内，这个新的配方变得更加听话。
A model for two-phase transport in capillary porous media is presented, in which the two phases are viewed as constituents of a binary mixture. The conservation equations are derived from the classical separate flow model without invoking additional assumptions. The present formulation, owing to its analogy to conventional multicomponent mixture flow theories and to a considerable reduction in the number of the differential equations required for the primary variables, provides an alternative for the theoretical analysis and numerical simulation of two-phase transport phenomena in porous media. Several complicated problems such as boundary layer two-phase flows, conjugate two- and single-phase flows in multiple regions and transient flows are shown to become more tractable within the framework of this new formulation.