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Comparison of measured and calculated velocity profiles of a laminar incompressible free jet at low Reynolds numbersA comparison of the measured and calculated velocity profiles of a laminar, incompressible, low Reynolds number jet is presented. The experimental jet was produced by a nozzle which consists of a porous metal plate covering the end of a pipe. This nozzle produces a uniform exit velocity profile at Reynolds numbers well below those at which conventional contoured nozzles are completely filled by the boundary layer. A jet mixing analysis based on the boundary-layer equations accurately predicted the velocity field for each test condition. The Reynolds number based on nozzle diameter ranged from 50 to 1000 with jet exit velocity either 30 or 61 m/s (100 or 200 ft/sec).
Document ID
19740013823
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Greene, G. C. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
May 1, 1974
Subject Category
Fluid Mechanics
Report/Patent Number
NASA-TN-D-7510
L-9277
Accession Number
74N21936
Funding Number(s)
PROJECT: RTOP 501-04-01-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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