No abstract

An all new, automated version of the PEGASUS software has been developed and tested. PEGASUS provides the hole-cutting and connectivity information between overlapping grids, and is used as the final part of the grid generation process for overset-grid computational fluid dynamics approaches. The new PEGASUS code (Version 5) has many new features: automated hole cutting; a projection scheme for fixing gaps in overset surfaces; more efficient interpolation search methods using an alternating digital https://ntrs.nasa.gov/search.jsp?R=20020063496 2018-05-08T14:11:46+00:00Z tree; hole-size optimization based on adding additional layers of fringe points; and an automatic restart capability.The new code has also been parallelized using the Message-Passing Interface standard. The parallelization performance provides efficient speed-up of the execution time by an order of magnitude, and up to a factor of 30for very large problems.

No abstract

No abstract