A note on momentum transfer above very r
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P. J. Mulhearn
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Article
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1979
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John Wiley and Sons
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English
β 199 KB
## Abstract Data from wind tunnel experiments on the deviations from unity of the nonβdimensional velocity gradient, Ξ¦~M~ = __(kz/u~\*~)(Ξ΄U/Ξ΄z)__, close to very rough surfaces are reviewed and compared with field data discussed by J. R. Garratt. It is found for __z/z~0~__ < 10^2^ that Ξ¦~M~ < 1 in f