MFD, Electromagnetic Columns, and Magneto-eklinostrophic Flow in Porous Media

IF 2.7 3区工程技术 Q3 ENGINEERING, CHEMICAL

Transport in Porous Media Pub Date : 2025-02-25 DOI:10.1007/s11242-025-02153-9

Peter Vadasz

引用次数: 0

Abstract

An analogy between magneto-fluid dynamics (MFD/MHD) in porous media and geostrophic flow in a rotating frame of reference in porous media including the existence of electromagnetic columns identical to Taylor-Proudman columns is identified and demonstrated theoretically. The latter occurs in the limit of small values of a dimensionless group representing the porous media Ekman number as well as even smaller values of an imposed magnetic field number. Consequently, the electromagnetic fluid flow subject to these conditions is two dimensional and the streamlines are being shown to be identical to the pressure lines in complete analogy to rotating geostrophic flows.

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多孔介质中的MFD、电磁柱和磁偏流

从理论上确定并论证了多孔介质中的磁流体动力学（MFD/MHD）与多孔介质旋转参照系中地转流的相似性，其中包括与Taylor-Proudman柱相同的电磁柱的存在。后者发生在代表多孔介质埃克曼数的无量纲群的小值以及施加磁场数的更小值的极限中。因此，在这些条件下的电磁流体流动是二维的，流线被证明与压力线完全相同，完全类似于旋转地转流。

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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来源期刊

Transport in Porous Media 工程技术-工程：化工

CiteScore

5.30

自引率

7.40%

发文量

155

审稿时长

4.2 months

期刊介绍： -Publishes original research on physical, chemical, and biological aspects of transport in porous media- Papers on porous media research may originate in various areas of physics, chemistry, biology, natural or materials science, and engineering (chemical, civil, agricultural, petroleum, environmental, electrical, and mechanical engineering)- Emphasizes theory, (numerical) modelling, laboratory work, and non-routine applications- Publishes work of a fundamental nature, of interest to a wide readership, that provides novel insight into porous media processes- Expanded in 2007 from 12 to 15 issues per year. Transport in Porous Media publishes original research on physical and chemical aspects of transport phenomena in rigid and deformable porous media. These phenomena, occurring in single and multiphase flow in porous domains, can be governed by extensive quantities such as mass of a fluid phase, mass of component of a phase, momentum, or energy. Moreover, porous medium deformations can be induced by the transport phenomena, by chemical and electro-chemical activities such as swelling, or by external loading through forces and displacements. These porous media phenomena may be studied by researchers from various areas of physics, chemistry, biology, natural or materials science, and engineering (chemical, civil, agricultural, petroleum, environmental, electrical, and mechanical engineering).