Volume 16, Issue 3 ((Iranian Journal of Physics Research,Fall) 2016)                   IJPR 2016, 16(3): 41-45 | Back to browse issues page

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Ebadi H. Kelvin-Helmholtz instability in solar spicules. IJPR. 2016; 16 (3) :41-45
URL: http://ijpr.iut.ac.ir/article-1-2181-en.html
1. Astrophysics Department, Physics Faculty, University of Tabriz, Tabriz, Iran 2. Research Institute for Astronomy and Astrophysics of Maragha, Maragha, Iran , hosseinebadi@tabrizu.ac.ir
Abstract:   (4222 Views)

Magneto hydrodynamic waves, propagating along spicules, may become unstable and the expected instability is of Kelvin-Helmholtz type. Such instability can trigger the onset of wave turbulence leading to an effective plasma heating and particle acceleration. In present study, two-dimensional magneto hydrodynamic simulations performed on a Cartesian grid is presented in spicules with different densities, moving at various speeds depending on their environment. Simulations being applied in this study show the onset of Kelvin-Helmholtz type instability and transition to turbulent flow in spicules. Development of Kelvin-Helmholtz instability leads to momentum and energy transport, dissipation, and mixing of fluids. When magnetic fields are involved, field amplification is also possible to take place

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Type of Study: Research | Subject: General

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