Derivation of conditions describing transport across zones of reduced dynamics within multiphase systems
Derivation of conditions describing transport across zones of reduced dynamics within multiphase systems
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DOI：
10.1029/wr025i003p00529
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发表时间：
1989-03
影响因子：
5.4
通讯作者：
S. Hassanizadeh;W. G. Gray
中科院分区：
文献类型：
--
作者：
S. Hassanizadeh;W. G. Gray
描述多相系统中的流动和输运的方程可以在平均理论的范围内导出。在一些地下系统中，平衡方程在感兴趣的域的一部分中必须是三维的，但在其他区域中仅需要是一维或二维的（例如，穿过粘土透镜体或在裂缝内）。连接不同区域之间的动态过程的条件通常是通过图解法获得的。这里提出了一个总体框架，在这个框架内可以系统地导出所需的条件。质量，动量，化学物种和热传递的特定条件之间的主要多孔介质域和渗透性裂缝和半渗透层说明。
Equations for describing flow and transport in multiphase systems can be derived within the context of averaging theory. In some subsurface systems, the balance equations must be three dimensional in one portion of a domain of interest but need be only one or two dimensional in other regions (e.g., across clay lenses or within fractures). Conditions linking the dynamic processes among the different regions are typically obtained heuristically. Here a general framework is presented within which the needed conditions may be derived systematically. Particular conditions for mass, momentum, chemical species, and heat transfer are illustrated between main porous media domains and both a permeable fracture and a semipermeable layer.