Variational structure for dissipationless linear drift-wave equations
Variational structure for dissipationless linear drift-wave equations
复制标题
无耗散线性漂移波方程的变分结构
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
A. Brizard
中科院分区：
文献类型：
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作者：
A. Brizard
无耗散线性漂移波方程的拉格朗日密度第一原理的推导由Mattor和Diamond最近提出[Phys.等离子体1,4002(1994)]。然后，从拉格朗日密度出发，导出了线性漂移波在旋转磁化等离子体中传播的精确波作用守恒律，而不需要使用波场的程函表示。
A derivation from first principles of the Lagrangian density for the dissipationless linear drift‐ wave equation recently introduced by Mattor and Diamond [Phys. Plasmas 1, 4002 (1994)] is presented. An exact wave‐action conservation law for linear drift waves propagating in a rotating magnetized plasma is then derived from the Lagrangian density without requiring the use of the eikonal representation for the wave fields.