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Computational aeroacoustics on massively parallel computersA computational fluid dynamics (CFD) technique is employed to solve aeroacoustics problems on massively parallel computers. The algorithm is based on a 4th order accurate central finite difference and 4th order accurate 4-stage Runge-Kutta time integration method that solves the 3-D full Navier-Stokes/Euler equations on a curvilinear coordinate system. The code has been developed to predict noise radiation from ducted fans. A specific application of this code is made here to the oscillating circular piston problem (Workshop Category 4, Problem 2) by solving the full Euler equations with nonreflecting boundary conditions in the axisymmetric mode. The features of the code that apply to this particular problem are described in this paper.
Document ID
19950023735
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Oezyoeruek, Yusuf
(Pennsylvania State Univ. University Park, PA, United States)
Long, Lyle N.
(Pennsylvania State Univ. University Park, PA, United States)
Date Acquired
September 6, 2013
Publication Date
May 1, 1995
Publication Information
Publication: NASA. Langley Research Center, ICASE(LaRC Workshop on Benchmark Problems in Computational Aeroacoustics (CAA) p 261-265 (SEE N95-30133 10-71)
Subject Category
Computer Systems
Accession Number
95N30156
Funding Number(s)
CONTRACT_GRANT: NAG1-1367
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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