Adaptive Grid Methods for Reactive Flows

The paper deals with a discussion of different adaptation concepts presently applied to simulations of reactive flows. The governing equations of inviscid, reactive flows are solved by Finite-Volume methods in combination with upwind schemes. Adaptive grid redistribution and hierarchical grid refinement methods are employed on structured grids. Hierarchical grid refinement concepts, like adaptive mesh refinement (AMR) and directional mesh refinement (DMR) have shown to be more flexible and efficient for multidimensiona flows than grid redistribution. Unstructured, triangulated meshes offer good properties for grid adaptation due the fact that grid cells can be added, removed or deformed. Adaptation of unsteady features on unstructured grids are performed with a combinations of static and dynamic meshes. The different methods are demonstrated by results for detonations and other wave problems