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논문 기본 정보

자료유형
학술저널
저자정보
Gurlek, Cahit (Cukurova University, Faculty of Engineering and Architecture, Department of Mechanical Engineering) Sahin, Besir (Cukurova University, Faculty of Engineering and Architecture, Department of Mechanical Engineering) Ozalp, Coskun (Cukurova University, Faculty of Engineering and Architecture, Department of Mechanical Engineering) Akilli, Huseyin (Cukurova University, Faculty of Engineering and Architecture, Department of Mechanical Engineering)
저널정보
테크노프레스 Wind & structures Wind & structures 제11권 제5호
발행연도
2008.1
수록면
345 - 359 (15page)

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An experimental investigation of the flow over the rectangular body located in close proximity to a ground board was reported using the particle image velocimetry (PIV) technique. The present experiments were conducted in a closed-loop open surface water channel with the Reynolds number, $Re_H=1.2{\times}10^4$ based on the model height. In addition to the PIV measurements, flow visualization studies were also carried out. The PIV technique provided instantaneous and time-averaged velocity vectors map, vorticity contours, streamline topology and turbulent quantities at various locations in the near wake. In the vertical symmetry plane, the upperbody flow is separated from the sharp top leading edge of the model and formed a large reverse flow region on the upper surface of the model. The flow structure downstream of the model has asymmetric double vortices. In the horizontal symmetry plane, identical separated flow regions occur on both vertical side walls and a pair of primary recirculatory bubbles dominates the wake region.

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