Anisotropic thermomagnetic effects on the universal stability of a diffusive state in porous media,ZAMM - Journal of Applied Mathematics and Mechanics

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Anisotropic thermomagnetic effects on the universal stability of a diffusive state in porous media
ZAMM - Journal of Applied Mathematics and Mechanics ( IF 2.3 ) Pub Date : 2021-05-21 , DOI: 10.1002/zamm.202000072
S. Saravanan ₁ , D. Brindha ₁ , H. Yamaguchi ₂

Affiliation

A nonlinear study is made to find the influence of transverse anisotropy on the onset of thermomagnetic convection in a homogeneous and rotating porous medium. The medium is filled with a magnetic fluid and is subjected to centrifugal force with alternating directions. Unconditional nonlinear stability bounds are found by exploiting the variational principles. Effects of various parameters on the stability threshold are discussed. The overpredicting nature of the linear theory is demonstrated by isolating the subcritical region which cannot be obtained a priori.

中文翻译：

各向异性热磁效应对多孔介质中扩散态普遍稳定性的影响

进行了非线性研究，以发现横向各向异性对均匀旋转多孔介质中热磁对流开始的影响。介质中充满磁性流体，并受到方向交替的离心力。通过利用变分原理找到无条件非线性稳定性边界。讨论了各种参数对稳定性阈值的影响。通过隔离无法先验获得的亚临界区域，证明了线性理论的过度预测性质。

更新日期：2021-05-21

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