Blockage effects on surface pressures: the case of an inclined flat plate with and without a guide plate
作者： Kung-Ming Chung , Chin-Chang Chou , Keh-Chin Chang
DOI: 10.1080/02533839.2014.888810
关键词: Wind tunnel 、 Model configuration 、 Geotechnical engineering 、 Surface (mathematics) 、 Flow separation 、 Blockage ratio 、 Materials science 、 Tilt (optics) 、 Vortex 、 Flow (psychology) 、 Mechanics
摘要: Wind tunnel wall confinement severely affects the flow characteristics around bluff bodies. In this experimental study, blockage effects on mean surface pressures of an inclined flat plate (aspect ratio = 0.5, tilt angle = 15–30°) with and without a guide were examined in two separated wind tunnels. The ratio (BR) ranged from 1.79 to 16.12%, which BR less than 5% was considered interference-free case. streamwise spanwise pressure distributions are definitely affected by BR. Model configuration is another concern. Maskell’s correction method applicable region separation corner vortices. There only minor stagnation region.
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