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Integrated Heat Transport Simulation of Multi-Ion-Species Plasma in LHD

Akira SAKAI, Sadayoshi MURAKAMI, Hiroyuki YAMAGUCHI, Arimitsu WAKASA and Atsushi FUKUYAMA

Department of Nuclear Engineering, Kyoto University, Kyoto 615-8540, Japan

(Received 10 December 2013 / Accepted 14 April 2014 / Published 29 July 2014)

Abstract

In this study, we have investigated the heat transport of multi-ion species plasma by modifying and improving the integrated simulation code TASK3D in LHD. The impurities in the electron and hydrogen plasmas were assumed to be helium and carbon. Turbulent transport is assumed to be independent of the impurity density ratio. The ion temperature, which is higher for carbon than that for helium, increases linearly as the impurity density ratio increases. The increment of the ion temperature is due to the decrease in the effective neoclassical heat transport and the ion density. The ion temperature increment is higher in the case of lower density.

Copyright (c) 2014 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

integrated simulation, heat transport, multi-ion-species plasma

DOI: 10.1585/pfr.9.3403124

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References

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This paper may be cited as follows:

Akira SAKAI, Sadayoshi MURAKAMI, Hiroyuki YAMAGUCHI, Arimitsu WAKASA and Atsushi FUKUYAMA, Plasma Fusion Res. 9, 3403124 (2014).