9:30 AM - 9:45 AM
[PEM17-15] Moment extracted method for solving kinetic Alfven wave dynamics
Keywords:Alfven waves, simulation, gyrokinetics
To overcome the numerical inefficiency, we have developed a new scheme for solving the KAW dynamics including drift kinetic electrons. In the new scheme, the low-order moments of electron distribution function are calculated separately from the drift kinetic equation for electrons. It enables us to easily implement implicit time-integrators and/or the semi-Lagrangian scheme while keeping the numerical stability and the conservation property. Some applications of the moment extracted formulation will be discussed.