Linear stability of certain translationally symmetric MHD equilibria with incompressible flow

In this paper, the linear stability analysis for ideal incompressible magnetohydrodynamic (MHD) flows is investigated. MHD flows in cylindrical domains with arbitrary cross-section as well as circular cross-section are considered. A solution method for obtaining solutions of the full MHD equations o...

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Detalhes bibliográficos
Principais autores: S.M. Moawad, A.A. Ramadan, D.A. Ibrahim, O.H. El-Kalaawy, E.T. Hussain
Formato: Artigo
Idioma:English
Publicado em: Elsevier 2017-01-01
coleção:Results in Physics
Acesso em linha:http://www.sciencedirect.com/science/article/pii/S2211379717306526
Descrição
Resumo:In this paper, the linear stability analysis for ideal incompressible magnetohydrodynamic (MHD) flows is investigated. MHD flows in cylindrical domains with arbitrary cross-section as well as circular cross-section are considered. A solution method for obtaining solutions of the full MHD equations of incompressible flow is constructed. Two criteria around the linear stability of that flow are applied to several nonlinear equilibria with constant and non-constant Mach number. The constructed method is exploited in obtaining sufficient conditions for linear stability of the former equilibria. Keywords: Magnetohydrodynamics, Stability, Incompressible flows, Exact equilibria
ISSN:2211-3797