External Magnetic Field Effects on the Rayleigh-Taylor Instability in an Inhomogeneous Rotating Quantum Plasma

• 作者: G. A. Hoshoudy
• 来源期刊: 现代物理(英文)
• 学科: 物理学
• 关键词: RAYLEIGH-TAYLOR INSTABILITY QUANTUM PLASMAS Magnetic Field
• 年，卷（期）: 2012,（11）
• 页码范围: 1792-1801
• 页数: 10页
• 分类号: O4

摘要

The effects of external magnetic field effects on the Rayleigh-Taylor instability in an inhomogeneous stratified quantum plasma rotating uniformly are investigated. The external magnetic field is considered in both horizontal and vertical direction. The linear growth rate is derived for the case where a plasma with exponential density distribution is confined between two rigid planes at z=0 and z=h, by solving the linear QMHD equations into normal mode. Some special cases are particularized to explain the roles that play the variables of the problem. The results show that, the presence of both external horizontal and vertical magnetic field beside the quantum effect will bring about more stability on the growth rate of unstable configuration. The maximum stability will happen in the case of wave number parallels to or in the same direction of external horizontal magnetic field.