Electromagnetic gyrokinetic simulation of turbulent transport in high ion temperature discharge of Large Helical Device

Turbulent transport in a high ion temperature discharge of Large Helical Device (LHD) is investigated by means of electromagnetic gyrokinetic simulations including kinetic electrons. A new electromagnetic gyrokinetic simulation code GKV+ enables us to examine electron heat and particle fluxes as well as ion heat flux in finite beta heliotron/stellarator plasmas [1]. This problem has not been previously explored because of numerical difficulties associated with complex three-dimensional magnetic structures as well as multiple spatio-temporal scales related to electromagnetic ion and electron dynamics. The turbulent fluxes, which are evaluated through a nonlinear simulation carried out in the K-super computer system, will be reported.\\[4pt] [1] A. Ishizawa, et.al., Nuclear Fusion 53, 053007 (2013).