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Measurement of the Correlation and Coherence Lengths in Boundary Layer Flight DataWall pressure data acquired during flight tests at several flight conditions are analyzed and the correlation and coherence lengths of the data reported. It is shown how the frequency bandwidth of the analysis biases the correlation length and how the convection of the flow acts to reduce the coherence length. Coherence lengths measured in the streamwise direction appear much longer than would be expected based on classical results for flow over a flat plat.
Document ID
20110007361
Acquisition Source
Langley Research Center
Document Type
Technical Memorandum (TM)
Authors
Palumbo, Daniel L. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 25, 2013
Publication Date
February 1, 2011
Subject Category
Aeronautics (General)
Report/Patent Number
NF1676L-11636
L-19938
NASA/TM-2011-217060
Funding Number(s)
WBS: WBS 561581.02.08.07.18.15
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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