Abstract
We customized TASK3D in order to add a new function, TR-snap, for evaluating transport coefficients on the basis of a power balance analysis. To check the validity of the TR-snap’s results, the thermal transport coefficient evaluated by TR-snap was compared with results of PROCTR, which is used as the transport analysis code in the Large Helical Device (LHD). The thermal transport coefficient evaluated by TR-snap was almost the same as that of PROCTR. The effect of re-entering fast ions on the transport coefficients in a typical LHD high-beta plasma was investigated using customized TASK3D. When the effect of the re-entering fast ions on the neutral-beam injection heating efficiency is considered, the thermal transport coefficient is slightly larger than that without considering the re-entering fast ions. However, the tendency of the thermal transport coefficient with considering the re-entering fast ions is rarely different from the previously identified tendency. c
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