Toroidal momentum confinement in neoclassical quasilinear theory in tokamaks

研究成果: Article同行評審

18 引文 斯高帕斯(Scopus)

摘要

The neoclassical quasilinear theory is employed to study the toroidal momentum confinement in tokamaks. The electrostatic fluctuation-induced toroidal stress is calculated. It is found that besides the conventional diffusion term, there is also a convective term in the toroidal momentum equation. In the case of a weak toroidal momentum source, the logarithmic gradient of the toroidal flow is proportional to the linear combination of the logarithmic gradients of the plasma pressure and the temperature. This conclusion is insensitive to both the renormalization procedure and the magnitude of the fluctuations. The theory is applied to explain the changing of the toroidal flow direction after low mode (L-mode) to high mode (H-mode) transition observed in some experiments.

原文English
頁(從 - 到)193-198
頁數6
期刊Physics of Plasmas
8
發行號1
DOIs
出版狀態Published - 2001 一月

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學

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