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Modeling of the Sawtooth Instability in Tokamaks Using a Current Viscosity Term

机译：使用当前粘度项建模托卡马克中的锯齿不稳定性

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We propose a new method for modeling the sawtooth instability and other MHD activity in axisymmetric tokamak transport simulations. A hyper-resistivity (or current viscosity) term is included in the mean field Ohm's law to describe the effects of the three-dimensional fluctuating fields on the evolution of the inverse transform, q, characterizing the mean fields. This term has the effect of flattening the current profile, while dissipating energy and conserving helicity. A fully implicit MHD transport and 2-D toroidal equilibrium code has been developed to calculate the evolution in time of the q-profile and the current profile using this new term. The results of this code are compared to the Kadomtsev reconnection model in the circular cylindrical limit. 17 refs., 8 figs. (ERA citation 13:050122)

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作者
Ward, D. J. ; Jardin, S. C.;
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年度 1988
页码 1-25
总页数 25
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Tokamak Type Reactors; Plasma Instability; Fluctuations; Magnetic Fields; Mathematical Models; Numerical Solution; Plasma Simulation; Transport Theory; Viscosity;

机译：托卡马克型反应堆;等离子体不稳定性;波动;磁场;数学模型;数值解;等离子体模拟;输运理论;粘度;

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专利

1. Three-dimensional modeling of the sawtooth instability in a small tokamak [J] . Breslau JA, Jardin SC, Park W Physics of plasmas . 2007,第5aPta2期

机译：小型托卡马克中锯齿不稳定性的三维建模
2. Interaction of external n = 1 magnetic fields with the sawtooth instability in low-q RFX-mod and DⅢ-D tokamaks [J] . C. Piron, P. Martin, D. Bonfiglio, Nuclear fusion . 2016,第10期

机译：低q RFX-mod和DⅢ-D托卡马克中外部n = 1磁场与锯齿形不稳定性的相互作用
3. Nonresonant suppression of the sawtooth instability by passing ions in tokamaks [J] . Lazaros A. Physics of plasmas . 2001,第8期

机译：通过在托卡马克中传递离子来非共振抑制锯齿不稳定性
4. Effect of Energetic Trapped Particles Produced by ICRF Wave Heating on Sawtooth Instability in the DIII-D Tokamak [C] . M. Choi, V. S. Chan, M. S. Chu, Topical Conference on Radio Frequency Power in Pasmas . 2007

机译：ICRF波加热产生的精力捕获粒子在DIII-D Tokamak中的锯齿不稳定上
5. Predictive integrated modeling of low aspect ratio tokamaks and large scale instabilities in tokamaks [D] . Nguyen, Canh Ngoc 2004

机译：低纵横比托卡马克和托卡马克中的大规模不稳定性的预测集成模型
6. The Antagonism of 5-HT6 Receptor Attenuates Current-Induced Spikes and Improves Long-Term Potentiation via the Regulation of M-Currents in a Pilocarpine-Induced Epilepsy Model [O] . Chaofeng Zhu, Rong Lin, Changyun Liu, 2020

机译：5-HT 6受体的拮抗作用通过毛细果芸香碱诱发的癫痫模型中的M电流调节来减弱电流诱导的尖峰并改善长期电位。
7. Non-linear Simulations of MHD Instabilities in Tokamaks Including Eddy Current Effects and Perspectives for the Extension to Halo Currents [O] . M. Hoelzl, G. T. A. Huijsmans, P. Merkel, 2016

机译：包含涡流效应的托卡马克中mHD不稳定性的非线性模拟和对光晕电流扩展的观点

Modeling of the Sawtooth Instability in Tokamaks Using a Current Viscosity Term

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