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Domain decomposition for aerodynamic and aeroacoustic analyses, and optimizationThe overarching theme was the domain decomposition, which intended to improve the numerical solution technique for the partial differential equations at hand; in the present study, those that governed either the fluid flow, or the aeroacoustic wave propagation, or the sensitivity analysis for a gradient-based optimization. The role of the domain decomposition extended beyond the original impetus of discretizing geometrical complex regions or writing modular software for distributed-hardware computers. It induced function-space decompositions and operator decompositions that offered the valuable property of near independence of operator evaluation tasks. The objectives have gravitated about the extensions and implementations of either the previously developed or concurrently being developed methodologies: (1) aerodynamic sensitivity analysis with domain decomposition (SADD); (2) computational aeroacoustics of cavities; and (3) dynamic, multibody computational fluid dynamics using unstructured meshes.
Document ID
19960009094
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Baysal, Oktay (Old Dominion Univ. Norfolk, VA, United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1995
Subject Category
Aerodynamics
Report/Patent Number
NASA-CR-199786
NAS 1.26:199786
NIPS-95-06479
Accession Number
96N16260
Funding Number(s)
CONTRACT_GRANT: NAG1-1499
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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