An Adaptive Mesh Semi-implicit Conservative Unsplit Method for Resistive MHD

R Samtaney, P Colella, T J Ligocki, D F Martin and S C Jardin

We present a cell-centered semi-implicit algorithm for solving the equations of single fluid resistive MHD on block structured adaptive meshes. Colella's unsplit method is extended for the ideal MHD part, and the diffusive terms are solved implicitly. The resulting scheme is conservative while preserving the solenoidal constraint of the magnetic field. Examples from verification tests are presented.