Simulation of Alfven wave propagation and power deposition in spherical tokamaks

• 1、School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043

Abstract：The predictions on Alfven wave propagation and power deposition have important reference value to the experiment. In this paper, Alfven wave propagation and power deposition were simulated. It shows that, there are obvious Alfven resonance in the propagation of Alfven waves. With the decreasing of Alfven wave frequency, the resonance position shift toward the central plasma. As a result of resistance effect, the Alfven power frequency spectrum is transformed to discrete spectrum. The increase of plasma temperature has no obvious influence on the position of power deposition, but will affect the magnitude of power deposition.

Keywords： nuclear energy science and engineering spherical tokamaks Alfven waves power deposition