Transport simulations of toroidal momentum and radial electric field using TOPICS with OFMC

Honda, Mitsuru; Hayashi, Nobuhiko; Takizuka, Tomonori*; Fujita, Takaaki

A toroidal momentum solver has been derived for the 1.5D integrated transport code TOPICS from the equation of motion and it calculates the evolution of the toroidal angular momentum density summed over thermal species. A novel scheme that can uniquely determine the radial electric field Er without iterative calculations has been modeled and is also used to compute the parallel and toroidal flows for each species based on the neoclassical transport theory. The combination of TOPICS and OFMC enables us to predict the evolution of not only the density, temperature and safety factor but also the toroidal momentum and Er. The framework developed has been tested against experiments and showed the predictive capability of toroidal rotation.