An Overset Algorithm for 3D Unstructured Grids

摘要

In this paper a new methodology is introduced to simulate flows around complex geometries by using overset unstructured grids.The proposed algorithm can also be used for the unsteady flows about objects in relative motions.In such a case since the elements are not deformed during the computation the costly part of conventional methods,re-meshing,is prevented.This method relies on the inter-grid boundary definition to establish communications among independent grids in the overset system.At the end,the Euler set of equations are integrated on several overset systems to examine the capabilities of this methodology.