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Two-Dimensional Air-Flow Tests of the Effect of ITA Flowliner Slot Modification by Grinding/Polishing on Edge Tone Generation PotentialHersh Walker Acoustics (HWA) has performed a series of wind tunnel tests to support crack-repair studies for ITA flowliner vent slots. The overall goal of these tests is to determine if slot shape details have a significant influence on the propensity of the flowliner to produce aero-acoustic oscillations that could increase unsteady stresses on the flowliner walls. The test series, conducted using a full-scale two-dimensional model of a six-slot segment of the 38 slot liner, was intended to investigate the effects of altering slot shape by grinding away cracked portions.
Document ID
20050041967
Acquisition Source
Headquarters
Document Type
Contractor Report (CR)
Authors
Sutliff, Daniel L. (NASA Glenn Research Center Cleveland, OH, United States)
Walker, Bruce E. (Hersh Walker Acoustics Westlake Village, CA, United States)
Date Acquired
September 7, 2013
Publication Date
December 1, 2004
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
E-14915
NASA/CR-2004-213405
Report Number: E-14915
Report Number: NASA/CR-2004-213405
Funding Number(s)
WBS: WBS 22-104-08-41
CONTRACT_GRANT: NASA Order S-40405
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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