Plasma and Fusion Research

Volume 10, 3403048 (2015)

Regular Articles

Integrated Particle Transport Simulation of NBI Plasmas in LHD
Akira SAKAI, Sadayoshi MURAKAMI, Hiroyuki YAMAGUCHI, Arimitsu WAKASA, Atsushi FUKUYAMA, Kenichi NAGAOKA1), Hiroyuki TAKAHASHI1), Hirohisa NAKANO1), Masaki OSAKABE1) and LHD Exp Group 1)
Department of Nuclear Engineering, Kyoto University, Kyoto 615-8540, Japan
National Institute for Fusion Science, Toki 509-5292, Japan
(Received 26 November 2014 / Accepted 20 January 2015 / Published 16 April 2015)


The integrated simulation code for helical plasmas, TASK3D, is improved to solve the particle transport equation and has been applied to the neutral beam injection (NBI) plasma of LHD. To solve the particle transport equation we consider two types of particle sources: ionization of neutral particles of the recycling neutral gas and ionization of neutral beams by NBI heating. The neutral particle transport code, AURORA, has been incorporated to calculate the recycling neutral particles, and the particle source by the recycling neutral gas has been evaluated. The particle source by the NBI heating neutral beam has been evaluated by FIT3D code. A particle transport simulation with three turbulent transport models has been performed. We find that the experimental results agree well with the constant turbulent transport model. The heat and particle transport simulation have also been performed to be compared with the LHD experimental plasma with different densities. The TASK3D simulation results show good agreements with experimental data.


TASK3D, AURORA, NBI plasma, particle transport

DOI: 10.1585/pfr.10.3403048


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This paper may be cited as follows:

Akira SAKAI, Sadayoshi MURAKAMI, Hiroyuki YAMAGUCHI, Arimitsu WAKASA, Atsushi FUKUYAMA, Kenichi NAGAOKA, Hiroyuki TAKAHASHI, Hirohisa NAKANO, Masaki OSAKABE and LHD Exp Group , Plasma Fusion Res. 10, 3403048 (2015).