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CFD Optimization on Network-Based Parallel Computer SystemCombining multiple engineering workstations into a network-based heterogeneous parallel computer allows application of aerodynamic optimization with advance computational fluid dynamics codes, which is computationally expensive in mainframe supercomputer. This paper introduces a nonlinear quasi-Newton optimizer designed for this network-based heterogeneous parallel computer on a software called Parallel Virtual Machine. This paper will introduce the methodology behind coupling a Parabolized Navier-Stokes flow solver to the nonlinear optimizer. This parallel optimization package has been applied to reduce the wave drag of a body of revolution and a wing/body configuration with results of 5% to 6% drag reduction.
Document ID
20020006303
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Cheung, Samson H.
(MCAT Inst. Mountain View, CA United States)
VanDalsem, William
Date Acquired
August 20, 2013
Publication Date
January 1, 1994
Subject Category
Fluid Mechanics And Thermodynamics
Meeting Information
Meeting: NASA CAS Workshop
Location: Moffett Field, CA
Country: United States
Start Date: March 7, 1995
End Date: March 9, 1995
Sponsors: NASA Headquarters
Funding Number(s)
CONTRACT_GRANT: NCC2-617
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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