Description: The adaptive mesh refinement feature automatically refines/coarsens elements in an Eulerian domain based on the criteria you sepecify. You can select from a variety of refinement criteria to suit your particular application. When applied to a shock propagation problem, this new feature can automatically refine the elements around the moving shock front; the elements are also automatically coarsened once the shock front passes. This feature is also very useful in problems where higher mesh resolution is needed to more accurately capture the location of a material interface/contact surface.