Simulation of resistive drift wave turbulence in a linear device

The three-field reduced magnetohydrodynamic (MHD) model is extended to describe the resistive drift wave turbulence in a linear device. Using this model, the linear eigenmode analysis has been performed to identify the unstable modes, which give an estimation of a necessary condition for the turbulence excitation in the Larger Mirror Device designed by Kyushu University. The parameter scan predicts the experimental condition for the excitation of the resistive drift wave turbulence. It is found that ion-neutral collision strongly stabilizes the resistive driftwave. A nonlinear simulation has also been performed to examine the saturation amplitude of the resistive drift wave turbulence.