Recent development of the integrated transport code TOPICS with emphasis on rotation and a radial electric field

回転と径電場を中心とした統合輸送コードTOPICSの最近の発展

本多 充; 林 伸彦; 滝塚 知典*; 吉田 麻衣子; 井手 俊介; 藤田 隆明

Honda, Mitsuru; Hayashi, Nobuhiko; Takizuka, Tomonori*; Yoshida, Maiko; Ide, Shunsuke; Fujita, Takaaki

A toroidal momentum solver has been derived for the 1.5D integrated transport code TOPICS from the equation of motion. A novel scheme that can uniquely determine the radial electric field without iterative calculations has also been modeled based on the neoclassical transport theory. The combination of TOPICS and OFMC enables us to predict the whole plasma evolution including the toroidal momentum and . The framework developed has been tested against experiments and showed the predictive capability of toroidal rotation profile. Several time-dependent simulations in which toroidal rotation and play a important role have been carried out, showing that the turbulence suppression due to the steep gradient is of crucial importance in forming transport barriers and the confinement depends upon the direction of toroidal rotation due to the change in .