Ideal MHD Instabilities, with a Focus on the Rayleigh–Taylor and Kelvin–Helmholtz Instabilities
Ideal MHD Instabilities, with a Focus on the Rayleigh–Taylor and Kelvin–Helmholtz Instabilities
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理想 MHD 不稳定性，重点关注瑞利-泰勒和开尔文-亥姆霍兹不稳定性
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
A. Hillier
中科院分区：
文献类型：
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作者：
A. Hillier
在本章中，我们将重点讨论瑞利-泰勒和开尔文-亥姆霍兹不稳定性的磁流体力学（MHD）版本，让读者超越常见的情况，包括额外的物理如何影响模型的稳定性。在讨论了每个不稳定性背后的物理过程之后，我们看一下理想MHD不稳定性研究背后的一般框架，详细介绍了一个简单模型的色散关系的推导。该模型的扩展，包括调查如何稳定性的变化存在的时变流。最后，我们来看看非线性是如何发展的，以及磁流体力学在这些非线性发展中的作用。
In this chapter we focus on the magnetohydrodynamic (MHD) versions of the Rayleigh–Taylor and Kelvin–Helmholtz instabilities, taking the reader beyond the commonly presented situations to include how extra physics influences the stability of the models. After a discussion of the physical processes behind each instability we look at the general framework behind the study of ideal MHD instabilities, providing a detailed look at the derivation of the dispersion relation for a simple model. Extensions to this model are presented, including an investigation into how stability changes in the presence of a time-varying flow. Finally, we take a look at how nonlinearities develop and the role of the MHD in terms of the development of these nonlinearities.
影响因子：
6.5
作者：
J. Carlyle;A. Hillier
通讯作者：
J. Carlyle;A. Hillier