Journal of Advanced Marine Engineering and Technology

  • 제31권2호
  • /
  • Pages.159-165
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  • 2007
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  • 2234-7925(pISSN)
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  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
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PIV를 이용한 직렬배열에서 2원주 주위의 유동장 특성 연구

The Characteristic Investigation of the Flowfield around Two Circular Cylinders in the Tandem Arrangement Using the PIV

  • 노기덕 (경상대학교 기계항공공학부.해양산업연구소) ;
  • 김광석 (경상대학교 대학원 기계시스템공학과) ;
  • 박지태 (경상대학교 대학원 기계시스템공학과) ;
  • 오세경 (경상대학교 기계항공공학부.농업생명과학연구원)
  • 발행 : 2007.03.31
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초록

The Characteristics of the flowfield around two circular cylinders in tandem arrangement was investigated by PIV. Strouhal numbers. velocity vectors and velocity profiles were observed at centre-to-centre space ratios of P/D= 1.5. 2.0 and 2.5, and Reynolds number of $Re=3.0{\times}10^3{\sim}5.0{\times}10^3$. As the results 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 size of the stagnated region was larger in the close side than in the far side of the front cylinder. The direction of vortex between two cylinders was opposed each other with the small difference(${\alpha}\;{\pm}1.0^{\circ}$) of the attack angle ${\alpha}$.

키워드

참고문헌

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  5. Zdravkovich, M. M., 'Smoke Observations of Wakes of Tandem Cylinders at Low Reynolds Number,' The Aeronautical journal, Vol. 76, pp.108-114, 1972
  6. Ishigai, S., Nishikawa, E., Nishimura. K., and Cho, K., 'Experimental Study on Structure of Gas Flow in Tube Banks with Tube Axes Normal to Flow (Part 1, Karman Vortex Flow around two Tubes at Various Spacings),' Bulletin of the Japan Society Mechanical Engineers, Vol. 15, No. 86, pp. 949-956, 1972 https://doi.org/10.1299/jsme1958.15.949
  7. 노기덕, 박지태, 강호근, '이산와법에 의한 다양한 배열에서 2원주 주위의 유동장 계산', 한국박용기관학회지, Vol. 27, No. 3, pp. 365-372, 2003

피인용 문헌

  1. The Visualization of the Flowfield around Three Circular Cylinders in the Tandem Arrangement by the PIV vol.35, pp.2, 2011, https://doi.org/10.5916/jkosme.2011.35.2.264
  2. PIV를 이용한 회류수조의 유속 분포 교정에 관한 연구 vol.25, pp.4, 2007, https://doi.org/10.5574/ksoe.2011.25.4.023