A new simulation model for the Hasegawa-Mima plasma equation -

Abstract

A nonlinear evolution of the drift-wave instability are investigated by means of numerical simulations based on a model equation derived from a two-fluid approximation that reduces to the Hasegawa-Mima equation. We intent to first formulate the Hasegawa-Mima equation as a coupled system and then perform a new numerical simulation with the adequate boundary conditions and initial conditions. Experiments will be done to study the Modon steadiness solution for the nonlinear Hasegawa-Mima equation and to test the Periodic Boundary Conditions using finite element method.