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Computation of Jet Screech NoiseThe space-time conservation-element and solution-element method is employed to numerically study the near-field screech-tone noise of a typical underexpanded circular jet issuing from a sonic nozzle. Both axisymmetric and fully three-dimensional computations are carried out. The self-sustained feedback loop is properly simulated. The computed shock-cell structure, acoustic wave length, screech-tone frequency, and sound-pressure levels are in good agreement with existing experimental results.
Document ID
20030107833
Acquisition Source
Glenn Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Hultgren, Lennart S. (NASA Glenn Research Center Cleveland, OH, United States)
Loh, Ching Y. (Taitech, Inc. Cleveland, OH, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Subject Category
Acoustics
Meeting Information
Meeting: 2003 National Conference on Noise Control Engineering
Location: Cleveland, OH
Country: United States
Start Date: June 23, 2003
End Date: June 25, 2003
Funding Number(s)
WBS: WBS 22-708-90-25
Distribution Limits
Public
Copyright
Public Use Permitted.
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