Experimental Study on the Flow around a Circular Cylinder with Tripping Wires

트리핑 와이어가 설치된 원형실린더 주위의 유동현상 연구

  • 류병남 (부산대학교 대학원 기계공학과) ;
  • 부정숙 (부산대학교 기계공학) ;
  • 조민기 (부산대학교 대학원 기계공학과)
  • Published : 2004.03.01

Abstract

The flow characteristic in the wake around a circular cylinder with tripping wires, which was set in constant distance, was experimentally investigated in the uniform flow, Re=2.92$\times10^4$. The measurement of velocity vector and pressure distribution are carried out various angles of tripping wires in the range of $50^(\circ)$ to $80^(\circ)$ with $10^(\circ)$ interval. The results show that velocity profiles and pressure distributions are different with angles of tripping wires. The drag of the circular cylinder was decreased about 60% maximum when tripping wires' angle was $50^(\circ)$. The lowest reduction of the velocity and wake width was occurred by coanda effect when the angle was $60^(\circ)$, and the vortex shedding periodicity become rare at the same time.

Keywords

References

  1. aerpmait. q. v.23 An Investigation of the Flow around Rectangular Cylinder Beraman,P.W.;Trueman,D.M.
  2. 日本機械學會論文集 v.55 no.511 小円柱によゐ円柱まわりの流れの制御に關すゐ硏究 五十嵐保;筒井敬之
  3. 日本機械學會論文集 v.57 no.533 小円柱によゐ円柱まわりの流れの制御に關すゐ硏究(第3報,背面に浴う付着曉流の特性 五十嵐保;筒井敬之
  4. 日本機械學會論文集 v.57 no.535 円柱の流體力制御とろの效果の解明(小円柱によゐ制御) 板本弘志;羽二生博之;松原忍
  5. 한국항공우주학회 논문집 v.20 no.3 제어봉에 의한 원주 주위 유동제어에 관한 연구 김대훈;이상준
  6. 대한기계학회 논문집 v.17 no.11 박리전단층 제어에 의한 정방형주 후류의 유동특성에 관한 실험적 연구 부정숙;양종필;정양범
  7. Bulletin of JSME v.29 no.255 Effect of Tripping Wires on the Flow around a Circular Cylinder Normal to Airstream Igarashi,T.
  8. 한국박용기관학회지 v.24 no.3 회전하는 제어원주가 설치된 원주후류의 유동장에 관한 연구 부정숙;류병남;심정훈