Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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The Visualization of the Flowfield around Square Prism Having Fences Using the PIV

PIV를 이용한 펜스를 가진 정방형주 주위의 유동장 가시화

  • 노기덕 (경상대학교 기계항공공학부.해양산업연구소) ;
  • 김광석 (경상대학교 대학원 기계시스템공학과) ;
  • 오세경 (경상대학교 기계항공공학부.농생명과학연구원)
  • Published : 2008.01.31
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Abstract

The characteristics of the flowfield of a square prism having fences on the corner was investigated by the PIV. Strouhal numbers, velocity vectors and velocity profiles around the square prism were observed at various positions of the fences, and Reynolds number of $Re=0.6{\times}10^4{\sim}1.0{\times}10^4$. As the results in case of the prism having fences the Strouhal numbers were all smaller than in case of the prototype prism. In case of the prism having vertical fences on the front corners the concentrated intensity of the vorticity was the strongest and the size of separated shear layer was the largest. While in case of the prism having vertical fences on the rear corners the concentrated intensity of the vorticity was the weakest and the size of separated shear layer was the smallest. Also in this case, the flow separated in front corner was reattached around the rear corner and made circulation.

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References

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