Section: New Results

A new fully two-dimensional conservative semi-Lagrangian method: applications on polar grids, from diocotron instability to ITG turbulence

In [25] , in collaboration with P. Glanc, S. Hirstoaga, E. Madaule, M. Mehrenberger, J. Pétri (University of Strasbourg), While developing a new semi-Lagrangian solver, the gap between a linear Landau run in 1dx1d and a 5D gyrokinetic simulation in toroidal geometry is quite huge. Intermediate test cases are welcome for checking the code. We consider here as building block, a 2D guiding-center type equation on an annulus. We first revisit a 2D test case previously done with a PIC approach and detail the boundary conditions. We then consider a 4D drift-kinetic slab simulation for which we give some first results of a new conservative method.