Adaptive Mesh Refinement for Singular Current Sheets in Incompressible   Magnetohydrodynamic Flows
  The formation of current sheets in ideal incompressible magnetohydrodynamic flows in two dimensions is studied numerically using the technique of adaptive mesh refinement. The growth of current density is in agreement with simple scaling assumptions. As expected, adaptive mesh refinement shows to be very efficient for studying singular structures compared to non-adaptive treatments. 
Holger Friedel, Rainer Grauer, and Christiane Marliani