Propagation of linear and weakly nonlinear waves in Hall-magnetohydrodynamic flows

IF 2.8 3区工程技术 Q2 MECHANICS

International Journal of Non-Linear Mechanics Pub Date : 2024-08-24 DOI:10.1016/j.ijnonlinmec.2024.104883

Triveni P. Shukla , V.D. Sharma

引用次数: 0

Abstract

We study in this paper linear and weakly nonlinear waves within the framework of a Hall-magnetohydrodynamic model. An optimal ordering, which allows the Hall effect to be seen in the leading order equations, is used to discuss the propagation of such waves; an evolution equation is obtained where the nonlinearity and Hall effect enter through the parameters that influence the wave propagation significantly. The interplay between nonlinearity and Hall effect leads to the emergence of a dispersive shock wave, which appears as the solution to the initial value problem associated with the evolution equation. The present study reveals a number of interesting flow characteristics which are not seen in the theory of ideal magnetohydrodynamics.

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霍尔磁流体流中线性波和弱非线性波的传播

本文在霍尔磁流体动力学模型的框架内研究了线性波和弱非线性波。我们使用了一种最佳排序方法来讨论这种波的传播，这种方法允许在前序方程中看到霍尔效应；我们得到了一个演化方程，在这个方程中，非线性和霍尔效应通过对波的传播有重大影响的参数进入。非线性和霍尔效应之间的相互作用导致了色散冲击波的出现，它是与演化方程相关的初值问题的解。本研究揭示了许多在理想磁流体力学理论中看不到的有趣流动特征。

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

International Journal of Non-Linear Mechanics 物理-力学

CiteScore

5.50

自引率

9.40%

发文量

192

审稿时长

67 days

期刊介绍： The International Journal of Non-Linear Mechanics provides a specific medium for dissemination of high-quality research results in the various areas of theoretical, applied, and experimental mechanics of solids, fluids, structures, and systems where the phenomena are inherently non-linear. The journal brings together original results in non-linear problems in elasticity, plasticity, dynamics, vibrations, wave-propagation, rheology, fluid-structure interaction systems, stability, biomechanics, micro- and nano-structures, materials, metamaterials, and in other diverse areas. Papers may be analytical, computational or experimental in nature. Treatments of non-linear differential equations wherein solutions and properties of solutions are emphasized but physical aspects are not adequately relevant, will not be considered for possible publication. Both deterministic and stochastic approaches are fostered. Contributions pertaining to both established and emerging fields are encouraged.