This is an English translation of Nikuradse's (1933) paper on sand grain roughness in pipes, originally written in German, presented to NACA.
CITATION STYLE
WILLIAMSON, J. (1951). THE LAWS OF FLOW IN ROUGH PIPES. La Houille Blanche, (5), 738–757. https://doi.org/10.1051/lhb/1951058
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