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首页> 外文期刊>Special topics & reviews in porous media >NUMERICAL INVESTIGATION OF THE HYDRODYNAMICS OF A LID-DRIVEN NON-DARCY ANISOTROPIC POROUS CAVITY
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NUMERICAL INVESTIGATION OF THE HYDRODYNAMICS OF A LID-DRIVEN NON-DARCY ANISOTROPIC POROUS CAVITY

机译：盖驱动的非达西各向异性孔洞水力动力学的数值研究

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摘要

The present study investigates the hydrodynamics of a lid-driven flow saturated with non-Darcy anisotropic porousmedia. The Reynolds numbers considered for the study are 10, 100, and 1000. The effect of the Darcy number (10~(-5) ≤ Da ≤ 10~(-2)) and porosity (ε = 0.3 and 0.6) have been varied to analyze the permeability ratio (K* = 0.1, 1, and10), Forchheimer constants ratio (F* = 1, 10, and 100), and principal axes inclination (θ = 0°, 45°, and 90°) on the flow behavior. A semi-implicit method for pressure-linked equations algorithm–based finite-volume method has been employed to solve the governing equations. Quadrilateral cells in a collocated grid arrangement have been considered. The flow physics has been interpreted by plotting the results in terms of streamlines and maximum stream function values. The study reveals that with an increase in the Reynolds number the influence of nonlinear drag forces becomes significant. Also, it is observed that the anisotropic parameters of the non-Darcy porous media profoundly modulate the flow.
机译：本研究研究了非达西各向异性多孔介质饱和的盖驱动流体的流体动力学。研究中考虑的雷诺数为10、100和1000。达西数（10〜（-5）≤Da≤10〜（-2））和孔隙率（ε= 0.3和0.6）的影响进行了变化以分析磁导率比（iK * = 0.1、1和10），Forchheimer常数比（iF * = 1、10和100）以及主轴倾斜角（iθ= 0°，45°和90°）。基于压力隐式方程的半隐式算法基于有限体积法求解控制方程。已经考虑了并置网格布置中的四边形单元。通过根据流线和最大流函数值绘制结果来解释流物理学。研究表明，随着雷诺数的增加，非线性阻力的影响变得显着。同样，可以观察到非达西多孔介质的各向异性参数深刻地调节了流动。

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