TY - JOUR
T1 - Comparison of kinetic and fluid neutral models for attached and detached state
AU - Furubayashi, M.
AU - Hoshino, K.
AU - Toma, M.
AU - Hatayama, A.
AU - Coster, D.
AU - Schneider, R.
AU - Bonnin, X.
AU - Kawashima, H.
AU - Asakura, N.
AU - Suzuki, Y.
N1 - Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2009/6/15
Y1 - 2009/6/15
N2 - 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.
AB - 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.
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U2 - 10.1016/j.jnucmat.2009.01.127
DO - 10.1016/j.jnucmat.2009.01.127
M3 - Article
AN - SCOPUS:67349277681
SN - 0022-3115
VL - 390-391
SP - 295
EP - 298
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1
ER -