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Blockage corrections for three-dimensional-flow closed-throat wind tunnels, with consideration of the effect of compressibilityTheoretical blockage corrections are presented for a body of revolution and for a three-dimensional unswept wing in a circular or rectangular wind tunnel. The theory takes account of the effects of the wake and of the compressibility of the fluid, and is based on the assumption that the dimensions of the model are small in comparison with those of the tunnel throat. Formulas are given for correcting a number of the quantities, such as dynamic pressure and Mach number, measured in wing-tunnel tests. The report presents a summary and unification of the existing literature on the subject.
Document ID
19930092053
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Herriot, John G
Date Acquired
September 6, 2013
Publication Date
January 1, 1950
Report/Patent Number
NACA-TR-995
Accession Number
93R21343
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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