Flow structure behind a perforated circular cylinder in shallow water
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Abstract (EN)
In this present work, vortex shedding behavior behind perforated circular cylinder was investigated experimentally in shallow water flow. Detailed measurements of instantaneous and time-averaged flow data of wake flow region at a Reynolds number of Re=11,500 based on cylinder diameter (D=90mm) were obtained by Particle Image Velocimetry (PIV) technique. The height of the shallow water was 45mm and the diameter of the holes drilled on the cylinder was 10mm. PIV experiments were carried out at the mid-section and bed surface of the water height. The effect of porosity ranging from 0.14 to 0.61 was investigated. Instantaneous and time-averaged flow data clearly indicate that the flow characteristics of perforated cylinders having porosities bigger than 0.2 were completely different than those obtained for bare cylinder case.
Author
Kamil Paydaş
How to Cite
Kamil Paydaş (Master Thesis). Flow structure behind a perforated circular cylinder in shallow water, 2008, Çukurova University.
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