粗糙微通道中单相和多相流动的三维模拟

O. A. Solnyshkina, N. B. Fatkullina, A. Z. Bulatova
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摘要

为了预测储层流体在多孔介质中的行为并在宏观水平上对其进行研究,有必要从单个孔隙空间的角度出发,考虑其结构特征,在微观水平上对多孔介质中的水动力流动进行详细研究。本文分析了粘不可压缩流体和分散体系在具有不规则侧壁的矩形截面的平坦通道中在恒压降条件下的周期性流动。采用基于非均质计算体系结构的快速多极法加速的三维边界元方法,研究了微通道壁上不同尺寸和形状的不规则性对多孔介质毛细管微观模型中粘性流体流动和乳状液滴动力学的影响。本文的研究结果对微流控器件的设计也有一定的参考价值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Three-Dimensional Simulation of Singleand Multi-Phase Flows in Roughness Microchannels

To predict the behavior of reservoir fluids in porous media and their investigation at the macroscopic level, it is necessary to study in detail the hydrodynamic flows in porous media at the microscale level from the point of view of the individual pore spaces taking into account their structural features. This paper deals with the analysis of a periodic flow of a viscous incompressible fluid and dispersed systems in a flat channel of rectangular cross section with irregular side walls under a constant pressure drop. Using an efficient numerical approach based on the 3D Boundary Element Method accelerated by the Fast Multipole Method on heterogeneous computing architectures, the influence of irregularities of various size and shape present on microchannel walls on the hydrodynamic flows of the viscous fluid flow and the emulsion droplet dynamics in a capillary micromodel of the porous medium is studied. The results of the present paper can also be useful in the design of microfluidic devices.

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来源期刊
Journal of Applied and Industrial Mathematics
Journal of Applied and Industrial Mathematics Engineering-Industrial and Manufacturing Engineering
CiteScore
1.00
自引率
0.00%
发文量
16
期刊介绍: Journal of Applied and Industrial Mathematics  is a journal that publishes original and review articles containing theoretical results and those of interest for applications in various branches of industry. The journal topics include the qualitative theory of differential equations in application to mechanics, physics, chemistry, biology, technical and natural processes; mathematical modeling in mechanics, physics, engineering, chemistry, biology, ecology, medicine, etc.; control theory; discrete optimization; discrete structures and extremum problems; combinatorics; control and reliability of discrete circuits; mathematical programming; mathematical models and methods for making optimal decisions; models of theory of scheduling, location and replacement of equipment; modeling the control processes; development and analysis of algorithms; synthesis and complexity of control systems; automata theory; graph theory; game theory and its applications; coding theory; scheduling theory; and theory of circuits.
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