Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The generation of peak pressures in separated/reattaching flows
AbstractAn experimental study was conducted to investigate the occurrence of large negative peak pressures near the leading edge of sharp-edged bluff bodies. Flow visualization experiments with a long flat plate reveal that negative peak pressures are produced when the separated shear layer rolls up to form a large vortex near the surface. The largest peaks occur approximately 0.25XR from the leading edge where XR is the mean reattachment length. Intermittent roll-up of the shear layer occurs in smooth flow as well as in turbulent flow for a model with a long afterbody. Conditional sampling of pressure data increases spanwise correlation length scales. Limited data obtained with a two-dimensional square cylinder with front face normal to the flow demonstrate the importance of accurately modelling turbulence intensity scale in wind tunnel studies of buildings.
The generation of peak pressures in separated/reattaching flows
AbstractAn experimental study was conducted to investigate the occurrence of large negative peak pressures near the leading edge of sharp-edged bluff bodies. Flow visualization experiments with a long flat plate reveal that negative peak pressures are produced when the separated shear layer rolls up to form a large vortex near the surface. The largest peaks occur approximately 0.25XR from the leading edge where XR is the mean reattachment length. Intermittent roll-up of the shear layer occurs in smooth flow as well as in turbulent flow for a model with a long afterbody. Conditional sampling of pressure data increases spanwise correlation length scales. Limited data obtained with a two-dimensional square cylinder with front face normal to the flow demonstrate the importance of accurately modelling turbulence intensity scale in wind tunnel studies of buildings.
The generation of peak pressures in separated/reattaching flows
Saathoff, P.J. (Autor:in) / Melbourne, W.H. (Autor:in)
Journal of Wind Engineering and Industrial Aerodynamics ; 32 ; 121-134
01.01.1989
14 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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