欢迎访问《核聚变与等离子体物理》官方网站,今天是 分享到:

核聚变与等离子体物理 ›› 2006, Vol. 26 ›› Issue (2): 87-94.

• 研究报告 • 上一篇    下一篇

Effects of compressibility on the Rayleigh-Taylor instability in Z-pinch implosions

HUANG Lin,JIAN Guang-de   

  1. (Southwestern Institute of Physics, Chengdu 610041)
  • 收稿日期:2005-11-16 修回日期:2006-03-09 出版日期:2006-06-15 发布日期:2012-01-21
  • 作者简介:HUANG Lin(1940-), male, Professor. Born in Sichuan Province. Graduated from Department of Physics, Peking University, in 1966, majoring in theoretic physics. As visiting professor worked in U.S.A during 1986~1988.

Effects of compressibility on the Rayleigh-Taylor instability in Z-pinch implosions

HUANG Lin,JIAN Guang-de   

  1. (Southwestern Institute of Physics, Chengdu 610041)
  • Received:2005-11-16 Revised:2006-03-09 Online:2006-06-15 Published:2012-01-21

摘要:

The effects of compressibility on the Rayleigh-Taylor instability in Z-pinch implosion plasmas are investigated by means of simple slab geometry. The linear mode equation, which includes main steady-state quantities and their gradients, is derived. Numerical solutions are presented. The incompressible fluid result is also obtained. These results indicate that the linear growth rate of the Rayleigh-Taylor instability for the compressible magnetohydrodynamic fluid is far larger than one in the incompressible situation. Therefore, the compressible systems are all more unstable than the incompressible ones.

关键词: Z-pinch, Rayleigh-Taylor instability, Compressibility, Growth rate.

Abstract:

The effects of compressibility on the Rayleigh-Taylor instability in Z-pinch implosion plasmas are investigated by means of simple slab geometry. The linear mode equation, which includes main steady-state quantities and their gradients, is derived. Numerical solutions are presented. The incompressible fluid result is also obtained. These results indicate that the linear growth rate of the Rayleigh-Taylor instability for the compressible magnetohydrodynamic fluid is far larger than one in the incompressible situation. Therefore, the compressible systems are all more unstable than the incompressible ones.

Key words: Z-pinch, Rayleigh-Taylor instability, Compressibility, Growth rate.

中图分类号: