Gyrokinetic simulations of entropy transfer in high ion temperature LHD plasmas

T H Watanabe; H Sugama; M Nunami; K Tanaka; M Nakata

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Gyrokinetic simulations of entropy transfer in high ion temperature LHD plasmas

机译：高离子温度LHD等离子体中熵转移的运动学模拟

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Gyrokinetic simulations of the ion temperature gradient (ITG) turbulence in non-axisymmetric configurations modeled on the Large Helical Device (LHD) are performed with the entropy transfer analysis (Nakata et al 2012 Phys. Plasmas 19 022303). It is clarified that a fluctuation spectrum elongated in the radial wavenumber direction is formed in a neoclassically optimized field configuration with the inward-shifted magnetic axis position, where the zonal flows are more effectively generated than in the standard case. The strong interaction between zonal flows and turbulence causes the successive entropy transfer from low to high radial wavenumber space and the spectral broadening of ITG turbulence.

机译：使用熵转移分析（Nakata et al 2012 Phys。Plasmas 19 022303）对大型螺旋设备（LHD）建模的非轴对称配置中的离子温度梯度（ITG）湍流进行了动力学仿真。可以清楚地看出，在新古典优化的场配置中，沿向内移动的磁轴位置形成了在径向波数方向上拉长的波动谱，与标准情况相比，在这种配置中更有效地产生了纬向流。纬向流与湍流之间的强相互作用导致从低到高的径向波数空间连续的熵转移以及ITG湍流的频谱展宽。

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《Plasma physics and controlled fusion》 |2013年第1期|共8页
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T H Watanabe; H Sugama; M Nunami; K Tanaka; M Nakata;
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中图分类等离子体物理学;
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1. Gyrokinetic simulations of entropy transfer in high ion temperature LHD plasmas [J] . T H Watanabe, H Sugama, M Nunami, Plasma physics and controlled fusion . 2013,第1期

机译：高离子温度LHD等离子体中熵转移的运动学模拟
2. Gyrokinetic simulations of an electron temperature gradient turbulence driven current in tokamak plasmas [J] . Yi Sumin, Jhang Hogun, Kwon J. M. Physics of plasmas . 2016,第10期

机译：托卡马克等离子体中电子温度梯度湍流驱动电流的运动学仿真
3. Integrated transport simulations of high ion temperature plasmas of LHD [J] . Murakami S., Yamaguchi H., Sakai A., Plasma physics and controlled fusion . 2015,第5期

机译：左旋高离子温度等离子体的集成输运模拟
4. Gyrokinetic simulation studies for non-axisymmetric plasma confinement: turbulent transport and entropy transfer [C] . T H Watanabe, H Sugama, M Nunami, Summer School and International Symposium on the Physics of Ionized Gases . 2013

机译：非轴对称等离子体监禁的旋转模拟研究：湍流运输和熵转移
5. Gyrokinetic particle simulations of reversed shear Alfven eigenmodes in fusion plasmas. [D] . Deng, Wenjun. 2011

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6. Simulations of the temperature dependence of energy transfer in the PSI core antenna. [O] . Y Jia, J M Jean, M M Werst, 1992

机译：PSI核心天线中能量传输的温度依赖性仿真。
7. Gyrokinetic Simulations for Ion Temperature Gradient Mode and Zonal Flows in LHD High Ion Temperature Discharge [O] . M. Nunami, T.-H. Watanabe, H. Sugama, 100

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8. Transport processes and entropy production in toroidal plasmas with gyrokinetic electromagnetic turbulence [R] . Sugama, H. , Okamoto, M. , Horton, W. , 1996

机译：具有陀螺动力学电磁湍流的环形等离子体中的传输过程和熵产生

Gyrokinetic simulations of entropy transfer in high ion temperature LHD plasmas

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