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核技术  2015 

托卡马克等离子体极向转动对带状流的影响

DOI: 10.11889/j.0253-3219.2015.hjs.38.100602, PP. 100602-100602

Keywords: 托卡马克,带状流,频率,等离子体极向转动

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Abstract:

采用理想磁流体力学模型,利用绝热近似方法,推导出托卡马克等离子体极向转动体系中带状流的色散方程,分析了极向转动对带状流产生的影响。结果表明,等离子体极向转动体系下,测地声模频率和声波频率都会随极向转动马赫数而增大。带状流的频率与采用等温近似时有一定的数值差别;测地声模的密度扰动量形式也发生变化,由静态体系中纯驻波的形式,变为由一个驻波和一个小振幅行波叠加的形式。

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