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Wind tunnel blockage effects on drag coefficient and wind-induced vibration
Abstract Wind tunnel blockage effects on not only drag coefficient but also wind-induced vibration were experimentally investigated. It was found in this study that Maskell's theory is applicable to porous body and hexagonal section as well as flat plate and rectangular section, and that blockage factor can be expressed in a general form to enable the correction of blockage effect for arbitrary section. The magnitude of blockage effect on drag coefficient was significant even at 5% of blockage ratio, while that on wind-induced vibration was found to be not so remarkable. However, there exists more serious effect on the dynamic responses of slender models where flow reattachment likely occurs.
Wind tunnel blockage effects on drag coefficient and wind-induced vibration
Abstract Wind tunnel blockage effects on not only drag coefficient but also wind-induced vibration were experimentally investigated. It was found in this study that Maskell's theory is applicable to porous body and hexagonal section as well as flat plate and rectangular section, and that blockage factor can be expressed in a general form to enable the correction of blockage effect for arbitrary section. The magnitude of blockage effect on drag coefficient was significant even at 5% of blockage ratio, while that on wind-induced vibration was found to be not so remarkable. However, there exists more serious effect on the dynamic responses of slender models where flow reattachment likely occurs.
Wind tunnel blockage effects on drag coefficient and wind-induced vibration
Takeda, K. (Autor:in) / Kato, M. (Autor:in)
Journal of Wind Engineering and Industrial Aerodynamics ; 42 ; 897-908
01.01.1992
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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