Pegasus 5.2 Software for Automated Pre-Processing of Overset CFD Grids

Pegasus software is used as a pre-processor for overset-grid Computational Fluid Dynamics (CFD) simulations. It provides the hole-cutting and connectivity information between structured overset grids. The main features of the software include automated hole-cutting algorithms, a projection scheme for fixing small discretization errors in overset surface, efficient interpolation search methods, hole-size optimization based on adding additional layers of fringe points, and an automatic restart capability. The code can run in parallel using the Message-Passing Interface (MPI) standard.