Multiscale features of density and frequency spectra from nonlinear gyrokinetics
Multiscale features of density and frequency spectra from nonlinear gyrokinetics
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非线性回旋运动密度和频谱的多尺度特征
DOI：
10.1063/1.3006086
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发表时间：
2008
影响因子：
2.2
通讯作者：
F. Jenko
中科院分区：
文献类型：
--
作者：
T. Görler;F. Jenko
提出了自洽地涵盖电子和离子时空尺度的回旋湍流模拟。研究发现，对于长波长下实验上真实的输运水平，电子温度梯度模式可能会对电子热通量产生大量甚至占主导地位的高波数贡献。研究了这种行为以何种方式反映在几个可通过实验获得的量（例如密度或频谱）中。
Gyrokinetic turbulence simulations covering both electron and ion spatio-temporal scales self-consistently are presented. It is found that for experimentally realistic transport levels at long wavelengths, electron temperature gradient modes may yield substantial or even dominant high-wavenumber contributions to the electron heat flux. It is investigated in which way this behavior is reflected in several experimentally accessible quantities as, for instance, density or frequency spectra.