在碰撞等离子体中阿尔芬(ALFVEN)波动力理论计算

计算物理 ›› 1990, Vol. 7 ›› Issue (4): 481-487.

在碰撞等离子体中阿尔芬(ALFVEN)波动力理论计算

简广德, 潘传红

西南物理研究院, 成都 610041

收稿日期:1990-06-01 出版日期:1990-12-25 发布日期:1990-12-25

CALCULATION OF KINETIC THEORY ON ALFVEN SOLITONS IN COLLISIONAL PLASMAS

Jian Guangde, Pan Chuanhong

Southwestern Institute of Phsics, Leshan, Sichuan, China

Received:1990-06-01 Online:1990-12-25 Published:1990-12-25

摘要/Abstract

摘要： 本文用预报校正格式求解了非线性复系数复函数抛物型方程,获得了阿尔芬(ALFVEN)波包在碰撞等离子体中随时间的非线性传播的演变图象。结果表明:碰撞粘滞对波包的阻尼作用不容忽视,而非线性朗道(Landau)阻尼对波包的阻尼作用较弱。

关键词: 预报校正法, 非线性复抛物型方程, 阿尔芬波, 碰撞粘滞, 非线性朗道阻尼

Abstract: The nonlinear complex parabolic partial differential equation is solived by the predictor-correction scheme. The numerical solutions are attained for the nonlinear propagration of ALFVEN wave-packet in collisional plasmas. The results show the effect of collision damping can not be neglected, whereas the nonlinear Landau damping is a weak effect compared with the collision one.

Key words: predictor-correction scheme, nonlinear complex parabolic equation, ALFVEN wave, collision-damping, nonlinear Landau damping

简广德, 潘传红. 在碰撞等离子体中阿尔芬(ALFVEN)波动力理论计算[J]. 计算物理, 1990, 7(4): 481-487.

Jian Guangde, Pan Chuanhong. CALCULATION OF KINETIC THEORY ON ALFVEN SOLITONS IN COLLISIONAL PLASMAS[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1990, 7(4): 481-487.