Overset gridding is a technique that avoids the topological complexity of generating abutting, point-to-point connected, multi-block grids by allowing the component grid blocks to overlap. The price paid for that flexibility is the need to ensure a sufficient degree of overlap so the CFD solver can accurately share data between the component grids. The overlap is computed using overset grid assembly software. Users of OGA software typically rely on a circuitous collection of home-grown tools that are patched together. By integrating OGA (in the form of the PEGASUS and Suggar++ software packages) with Pointwise, the entire process is made more efficient
