Abstract
A scheme to generate dynamic unstructured grids and an implicit upwind Euler solver are presented to compute solutions on dynamic grids in threedimensions. The grid generation scheme produces Delaunay unstructured triangular or tetrahedral meshes for static and dynamic grid cases. To obtain a solution for multiple bodies in relative motion, dynamic grid restructuring and smoothing are implemented to provide a high quality unstructured grid for the flow solver. The scheme uses the boundary node location and a user specified clustering parameter to determine where nodes on the interior should be added and deleted to maintain a smooth variation in cell volume. In this analysis, numerical results are compared to experimental data for a complex wing-pylonlfinned-store configuration.
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