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Overset grid applications on distributed memory MIMD computersAnalysis of modern aerospace vehicles requires the computation of flowfields about complex three dimensional geometries composed of regions with varying spatial resolution requirements. Overset grid methods allow the use of proven structured grid flow solvers to address the twin issues of geometrical complexity and the resolution variation by decomposing the complex physical domain into a collection of overlapping subdomains. This flexibility is accompanied by the need for irregular intergrid boundary communication among the overlapping component grids. This study investigates a strategy for implementing such a static overset grid implicit flow solver on distributed memory, MIMD computers; i.e., the 128 node Intel iPSC/860 and the 208 node Intel Paragon. Performance data for two composite grid configurations characteristic of those encountered in present day aerodynamic analysis are also presented.
Document ID
19940031890
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chawla, Kalpana (Overset Methods, Inc. Los Altos, CA, United States)
Weeratunga, Sisira (Overset Methods, Inc. Los Altos, CA, United States)
Date Acquired
September 6, 2013
Publication Date
June 30, 1994
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NAS 1.26:196081
NASA-CR-196081
OMI-02-93
Meeting Information
Meeting: AIAA Aerospace Sciences Meeting and Exhibit
Location: Reno, NV
Country: United States
Start Date: January 9, 1995
End Date: January 12, 1995
Accession Number
94N36397
Funding Number(s)
CONTRACT_GRANT: NCC2-806
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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