ROUGH WALL TURBULENT BOUNDARY LAYERS.

作者: A. E. Perry , W. H. Schofield , P. N. Joubert

DOI: 10.1017/S0022112069000619

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摘要: Abstract : The paper describes a detailed experimental study of turbulent boundary layer development over rough walls in both zero and adverse pressure gradients. Skin friction was determined by tapping the roughness elements measuring their form drag. Two wall geometries were chosen each giving different law behaviour. However, it has been found that results for types correlate with Reynolds number based on shear velocity distance below crests from which logarithmic distribution is measured. One important implication this gradient cavity type conforms to Rotta's condition precise self preserving flow. (Author)

参考文章(13)
A. A. R. Townsend, The structure of turbulent shear flow stsf. pp. 440- ,(1980)
FRANCIS H. CLAUSER, Turbulent Boundary Layers in Adverse Pressure Gradients Journal of the Aeronautical Sciences. ,vol. 21, pp. 91- 108 ,(1954) , 10.2514/8.2938
Donald Coles, The law of the wake in the turbulent boundary layer Journal of Fluid Mechanics. ,vol. 1, pp. 191- 226 ,(1956) , 10.1017/S0022112056000135
Alan L. Kistler, Some Properties of Turbulent Separated Flows Physics of Fluids. ,vol. 10, pp. S165- ,(1967) , 10.1063/1.1762438
Experiments with Fluid Friction in Roughened Pipes Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences. ,vol. 161, pp. 367- 381 ,(1937) , 10.1098/RSPA.1937.0150
A. E. Perry, Turbulent boundary layers in decreasing adverse pressure gradients Journal of Fluid Mechanics. ,vol. 26, pp. 481- 506 ,(1966) , 10.1017/S0022112066001344
H. Schlichting, Experimentelle Untersuchungen zum Rauhigkeitsproblem Ingenieur-Archiv. ,vol. 7, pp. 1- 34 ,(1936) , 10.1007/BF02084166
A. E. Perry, P. N. Joubert, Rough-wall boundary layers in adverse pressure gradients Journal of Fluid Mechanics. ,vol. 17, pp. 193- 211 ,(1963) , 10.1017/S0022112063001245
A. A. Townsend, EQUILIBRIUM LAYERS AND WALL TURBULENCE Journal of Fluid Mechanics. ,vol. 11, pp. 97- 120 ,(1961) , 10.1017/S0022112061000883
R. L. Haugen, Momentum Transfer in Turbulent Separated Flow Past a Rectangular Cavity Journal of Applied Mechanics. ,vol. 33, pp. 641- 646 ,(1966) , 10.1115/1.3625133