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http://dx.doi.org/10.5139/JKSAS.2008.36.2.131

The Characteristic Investigation of the Flowfield around Two Circular Cylinders in Various Arrangements Using the PIV  

Ro, Ki-Deok (경상대학교 기계항공부.해양산업연구소)
Kim, Kwang-Seok (경상대학교 대학원 기계시스템공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.2, 2008 , pp. 131-136 More about this Journal
Abstract
The characteristics of the flowfields around two circular cylinders in various arrangements were investigated by PIV. In tandem arrangement, the Strouhal numbers measured in the rear region of the cylinder of wake side were decreased with the space ratios, the flow between two cylinders was almost stagnated and the closer to upstream cylinder, the larger the width of the stagnated region was. The direction of vortex between two cylinders was opposed each other with the small difference(${\alpha}$=${\pm}1.0^{\circ}$) of the attack angle . In side by side arrangement, the flow velocity between two circular cylinders were increased with the space ratios.
Keywords
Flow visualization; PIV; Unsteady flow; Two circular cylinder; Flow interference;
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