Turbulent shear flow behind a single row of bluff obstacles placed on plane boundary |
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| Institution: | 1. Department of Agricultural Economics, University of Nairobi, Nairobi 29053, Kenya;2. International Livestock Research Institute, C/O Bioversity International, Kampala 24384, Uganda;3. International Livestock Research Institute, Nairobi 30709-00100, Kenya;1. Department of Hematology, Leiden University Medical Center, Leiden, the Netherlands;2. Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, the Netherlands |
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| Abstract: | This paper presents an experimental investigation concerned with methods of artificially thickening turbulent boundary layers on a plane surface by using a row of several bluff obstacles. The thickness of this shear layer, the velocity profile and the turbulence intensity of the shear flow behind a row of obstacles were measured and compared with those of a naturally developed turbulent boundary layer. Experiments showed that the shear layer is significantly thicker than the naturally developed turbulent boundary layer, and the velocity profile and the turbulence intensity profiles for the case of a row of cones and triangular plates with vertical angle 2α = 30° are nearly the same as those of a naturally developed turbulent boundary layer. |
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