Mechanisms governing radial heat fluxes in tokamak plasma
- 作者: Razumova K.1, Timchenko N.1, Dnestrovskij A.1, Lysenko S.1
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隶属关系:
- National Research Centre Kurchatov Institute
- 期: 卷 42, 编号 9 (2016)
- 页面: 809-817
- 栏目: Tokamaks
- URL: https://journals.rcsi.science/1063-780X/article/view/185925
- DOI: https://doi.org/10.1134/S1063780X16090087
- ID: 185925
如何引用文章
详细
A method for analyzing the characteristics of turbulence responsible for radial heat transport is proposed. The method is based on the previously proposed hypotheses (to a great extent, confirmed experimentally) concerning the consistency of normalized pressure profiles in tokamak plasmas and the mechanism of internal transport barrier formation. Using the proposed approach, it is shown that, under an external action on the plasma, when the plasma heat flux onto the wall grows, the spectrum of turbulent modes broadens due to the excitation of modes with lower poloidal numbers m. Thus, in contrast to the conventional diffusion approach, the transport coefficient depends on the flux intensity. A mechanism of formation of internal transport barriers is proposed.
作者简介
K. Razumova
National Research Centre Kurchatov Institute
编辑信件的主要联系方式.
Email: Razumova_KA@nrcki.ru
俄罗斯联邦, pl. Akademika Kurchatova 1, Moscow, 123182
N. Timchenko
National Research Centre Kurchatov Institute
Email: Razumova_KA@nrcki.ru
俄罗斯联邦, pl. Akademika Kurchatova 1, Moscow, 123182
A. Dnestrovskij
National Research Centre Kurchatov Institute
Email: Razumova_KA@nrcki.ru
俄罗斯联邦, pl. Akademika Kurchatova 1, Moscow, 123182
S. Lysenko
National Research Centre Kurchatov Institute
Email: Razumova_KA@nrcki.ru
俄罗斯联邦, pl. Akademika Kurchatova 1, Moscow, 123182