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Experimental Investigation of the Problem of Surface RoughnessBased on the universal laws of turbulent velocity distribution at rough and smooth walls, there is in the present work presented a method that allows surface roughness tests and in particular, measurements on the roughness of ship surfaces to be carried out in a much simpler manner. The types of roughness investigated were in the form of flat, rough plates installed in a square-section rectangular channel, the other three walls always being smooth. Twenty-one plates of various roughness were investigated, the roughness elements being the following: spheres of diameter 0.41 and 0.21, respectively, spherical segments, cones, and "short" and "long" angles.
Document ID
19930094593
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Schlichting, H
Date Acquired
September 6, 2013
Publication Date
April 1, 1937
Report/Patent Number
NACA-TM-823
Accession Number
93R23513
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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