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Development of the transport-code framework for self-consistent predictions of rotation and the radial electric field

自己無撞着な回転と径電場予測のための輸送コードの枠組みの開発

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

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

A toroidal momentum solver has been modeled and integrated into the 1.5D integrated transport code TOPICS. A scheme that can uniquely determine the radial electric field $$E_r$$ without an iterative calculation has been developed. It is also used to compute the parallel and toroidal flows for each species based on the neoclassical transport theory. The combination of TOPICS and the orbit-following Monte Carlo code OFMC enables us to self-consistently predict the evolution of not only the density, temperature and safety factor but also the toroidal momentum, following $$E_r$$. The framework developed has been tested against JT-60U experiments and showed the predictive capability of toroidal rotation. Rapid toroidal rotation can be hardly expected in ITER if it is solely driven by neutral beam injection, whereas the residual stress may potentially generate the torque comparable to or greater than that by neutral beams.

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パーセンタイル:28.64

分野:Physics, Fluids & Plasmas

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