Detached helium plasma simulation by a one-dimensional fluid code with detailed collisional-radiative model

H. Tanaka, I. Saeki, N. Ohno, S. Kajita, T. Ido, H. Natsume, A. Hatayama, K. Hoshino, K. Sawada, M. Goto

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

To increase the accuracy of a particle, momentum, and energy source terms in the detached helium plasma simulation, rate coefficients with the collisional-radiative model were introduced into the fluid code LINear Divertor Analysis (LINDA). Obtained effective rate coefficients and related source terms were compared with those from the conventional empirical databases. It is shown that a high-density condition in future fusion devices causes larger deviation between the effective and the empirical source terms. One-dimensional detached plasma simulation indicated that the peak amplitude of the plasma density during the rollover is sensitive to the source term difference related to the recombination. This study additionally revealed that the heating effect in the three-body recombination process strongly affects the detached plasma formation and downstream plasma parameters.

本文言語英語
論文番号102505
ジャーナルPhysics of Plasmas
27
10
DOI
出版ステータス出版済み - 10 1 2020
外部発表はい

All Science Journal Classification (ASJC) codes

  • 凝縮系物理学

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