Abstract
The combined effect of the turbulence intensity ɛ, the turbulence scaleL, and the Reynolds number Re** on the surface friction coefficientc f in a turbulent boundary layer is studied. The dependence of the relative friction increment on the equivalent turbulence level ɛcq, which takes into account the simultaneous variation in ɛ,L and Re**, is determined. The threshold value ɛcq * below which the value ofc f does not depend on ɛcq is found.
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Moscow. Translated from Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, No. 2, pp. 65–75, March–April, 1995.
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Kuzenkov, V.K., Levitskii, V.N., Repik, E.U. et al. Effect of free-stream turbulence on surface friction in a turbulent boundary layer. Fluid Dyn 30, 210–218 (1995). https://doi.org/10.1007/BF02029832
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DOI: https://doi.org/10.1007/BF02029832