Pressure jump interface law for the Stokes–Darcy coupling: confirmation by direct numerical simulations
Pressure jump interface law for the Stokes–Darcy coupling: confirmation by direct numerical simulations
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DOI：
10.1017/jfm.2013.416
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发表时间：
2013-01
影响因子：
3.7
通讯作者：
T. Carraro;C. Goll;A. Marciniak-Czochra;A. Mikelić
中科院分区：
文献类型：
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作者：
T. Carraro;C. Goll;A. Marciniak-Czochra;A. Mikelić
摘要一般认为，粘性流动在多孔床面上的有效速度满足Beivers-Joseph滑移定律。相反，有效应力的界面规律一直是一个有争议的话题。最近，Marciniak-Czochra和Mikelić严格地推导了压力跳跃界面定律。在本文中，我们用微观层面上的直接数值模拟对分析结果进行了验证。据作者所知，这是第一次在文献中对压力界面定律进行数值验证。
Abstract It is generally accepted that the effective velocity of a viscous flow over a porous bed satisfies the Beavers–Joseph slip law. To the contrary, the interface law for the effective stress has been a subject of controversy. Recently, a pressure jump interface law has been rigourously derived by Marciniak-Czochra and Mikelić. In this paper, we provide a confirmation of the analytical result using direct numerical simulation of the flow at the microscopic level. To the best of the authors’ knowledge, this is the first numerical confirmation of the pressure interface law in the literature.