论文标题

零频率的Zonal流动流动激发通过能量电子驱动的β诱导的Alfven本征模

Zero frequency zonal flow excitation by energetic electron driven beta-induced Alfven eigenmode

论文作者

Qiu, Zhiyong, Chen, Liu, Zonca, Fulvio, Ma, Ruirui

论文摘要

使用非线性陀螺仪理论研究了被捕获的能量电子驱动β诱导的Alfven本征(EBAE)的零频率Zonal流(ZFZF)激发。发现在EBAE的线性生长阶段,共振能电子(EES)不仅有效地使EBAE不稳定,而且有助于非线性耦合,从而导致ZFZF激发。对ZFZF生成的被困EE贡献以EE对理想区域的EE响应为主,并且与对Reynolds和Maxwell应力的热等离子体贡献相当。

Zero frequency zonal flow (ZFZF) excitation by trapped energetic electron driven beta-induced Alfven eigenmode (eBAE) is investigated using nonlinear gyrokinetic theory. It is found that, during the linear growth stage of eBAE, resonant energetic electrons (EEs) not only effectively drive eBAE unstable, but also contribute to the nonlinear coupling, leading to ZFZF excitation. The trapped EE contribution to ZFZF generation is dominated by EE responses to eBAE in the ideal region, and is comparable to thermal plasma contribution to Reynolds and Maxwell stresses.

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