Comparison of kinetic and fluid neutral models for attached and detached state

M. Furubayashi, K. Hoshino, M. Toma, A. Hatayama, D. Coster, R. Schneider, X. Bonnin, H. Kawashima, N. Asakura, Y. Suzuki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Neutral behavior has an important role in the transport simulations of the edge plasma. Most of the edge plasma transport codes treat neutral particles by a simple fluid model or a kinetic model. The fluid model allows faster calculations. However, the applicability of the fluid model is limited. In this study, simulation results of JT-60U from kinetic neutral model and fluid neutral model are compared under the attached and detached state, using the 2D edge plasma code package, SOLPS5.0. In the SOL region, no significant differences are observed in the upstream plasma profiles between kinetic and fluid neutral models. However, in the divertor region, large differences are observed in plasma and neutral profiles. Therefore, further optimization of the fluid neutral model should be performed. Otherwise kinetic neutral model should be used to analyze the divertor region.

Original languageEnglish
Pages (from-to)295-298
Number of pages4
JournalJournal of Nuclear Materials
Volume390-391
Issue number1
DOIs
Publication statusPublished - 2009 Jun 15

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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    Furubayashi, M., Hoshino, K., Toma, M., Hatayama, A., Coster, D., Schneider, R., Bonnin, X., Kawashima, H., Asakura, N., & Suzuki, Y. (2009). Comparison of kinetic and fluid neutral models for attached and detached state. Journal of Nuclear Materials, 390-391(1), 295-298. https://doi.org/10.1016/j.jnucmat.2009.01.127