Incorporation of Arbitrary Grid Patching Into Gasp Version 3.0

Period of Performance: 08/11/1994 - 08/11/1996

$297K

Phase 2 SBIR

Recipient Firm

Aerosoft, Inc.
2000 Kraft Drive Suite 1400
Blacksburg, VA 24060
Principal Investigator

Research Topics

Abstract

The objective of this Phase II research is to enhance the productive capabilities of the General Aerodynamic Simulation Program (GASP) CFD code. The phase II period will consist of the following tasks: extending the generalized-zonal-boundary interpolation routines, adding time-dependent-metric terms and a dual-time-stepping algorithm, and implementing a domain-decomposition algorithm for computing on MIMD (Multiple Instruction Multiple Data) parallel architectures. The zonal-boundary-interpolation improvements will consist of new search algorithms and the ability to map a structured zone to an unstructured zone. The incorporation of time-dependent metrics will allow for the computation of complex, multi-zone problems with dynamic meshes. In addition to writing the domain-decomposition algorithm, the porting of GASP to parallel environments will involve reorganizing the memory allocation and incorporating message passing into the zonal-boundary routines. At the conclusion of Phase II, AeroSoft will provide a version of GASP which contains the above improvements, and is capable of computing efficiently on parallel MIMD computers such as the Cray-C90, a cluster of SGI workstations, and the Intel Paragon.