极化力和尘埃电荷变化非绝热性影响下磁化等离子体中的冲击形成

IF 1.3 4区 工程技术 Q3 MECHANICS Fluid Dynamics Research Pub Date : 2022-01-31 DOI:10.1088/1873-7005/ac505c
S. Bansal, T. Gill
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引用次数: 0

摘要

在这项工作中,我们分析了非绝热尘埃电荷波动影响下的极化力、倾角对磁旋转等离子体中冲击波形成的影响。目前的等离子体模型由带负电荷的尘埃粒子、麦克斯韦电子和非拉伸离子组成。耗散是通过非绝热性引入系统的,这是一种形成冲击波的新机制。利用标准的约化摄动方法,导出了非线性方程,即Korteweg-de-Vries-Burgers(KdVB)方程,并用Tanh方法求解。结果表明,尘埃电荷的波动是耗散的主要来源。我们研究了各种参数对这种冲击结构的影响,并展示了这些参数的逐渐变化如何影响其各自领域中冲击的产生和结构。许多关于具有非绝热尘埃电荷波动的尘埃等离子体的实验将受益于参数研究。
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Shock formation in magnetized plasma under the influence of Polarization force and nonadiabaticity of dust charge variation
In this work, we have analyzed the impact of polarisation force, angle of obliqueness under the influence of nonadiabatic dust charge fluctuation on shock waves formation in magneto rotating plasma. The present plasma model is consisting of negatively charged dust grains, Maxwellian electrons, nonextensive ions. The dissipation is introduced in the system via nonadiabaticity, a new mechanism for the formation of shock waves. Using standard reductive perturbation method, nonlinear equation namely Korteweg-de Vries Burgers (KdVB) equation is derived and solution is obtained using the Tanh method. It is shown that dust charge fluctuation is the main source of dissipation. We have studied the various parameteric influences on such shock structure and also showed how the gradual variations of these parameter affect the generation and structure of the shocks in their respective domain. Much of experiments on dusty plasma with nonadiabatic dust charge fluctuation will benefit from the parametric study.
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来源期刊
Fluid Dynamics Research
Fluid Dynamics Research 物理-力学
CiteScore
2.90
自引率
6.70%
发文量
37
审稿时长
5 months
期刊介绍: Fluid Dynamics Research publishes original and creative works in all fields of fluid dynamics. The scope includes theoretical, numerical and experimental studies that contribute to the fundamental understanding and/or application of fluid phenomena.
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