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Noise calculation on the basis of vortex flow modelsFlow-modeling technique yields relatively simple method for calculating sound radiation involving planar, cylindrical, or spherical surfaces. Model employs potential flow theory with action of viscosity on flowfield described in terms of point vortices. Surface presence in flow is analyzed, using classical image method; sound is calculated through sound generation theory reformulation.
Document ID
19780000078
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Hardin, J. C.
Date Acquired
August 9, 2013
Publication Date
June 1, 1978
Publication Information
Publication: NASA Tech Briefs
Volume: 3
Issue: 1
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-12271
Accession Number
78B10078
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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