电子回旋波与快波协同效应的数值研究  

Numerical study of synergetic effects for electron cyclotron wave and fast wave

作　　者：郑平卫[1] 龚学余[1] 刘文艳[1] 何丽华[1] 

机构地区：[1]南华大学核科学技术学院,衡阳421001

出　　处：《核聚变与等离子体物理》2011年第1期24-27,共4页Nuclear Fusion and Plasma Physics

基　　金：国家973项目波与聚变等离子体相互作用研究(2009GB105002);国家自然科学基金资助项目(10775066)

摘　　要：在考虑了电子的反弹平均效应及高能电子的相对论效应下,通过数值求解电子的Fokker-Planck方程,研究了托卡马克等离子体中快波与电子回旋波电流驱动问题。采用九点差分法对方程进行离散,应用近似LU因子分解法对方程进行了数值求解。计算结果表明快波与电子回旋波联合电流驱动具有很强的协同效应,在两波联合电流驱动下,驱动电流大于单波电流驱动之和。The problem of electron cyclotron wave and fast wave current drive is studied by solving the Fokker-Planck equation in a numerical method for tokamak plasma. Effects of both bounce-averaging and relativity for electrons are considered in the process of solving. The Fokker-Planck equation is discretized by nine points difference technique, and solved by incomplete LU factorization. The results are shown that high synergetic effects are existed by combined current drive of electron cyclotron wave and fast wave, and the size of current density driven by the two waves is higher than total of the two single one.

关 键 词：快波 电子回旋波 协同效应 

分 类 号：TL612.4[核科学技术—核技术及应用]