An investigation on flow characteristics of two dimensional inclined wall attaching offset jet

단이 진 경사벽면에 부착되는 2차원 제트유동에 관한 연구

  • 송흥복 (한국전력공사 부산화력 발전처) ;
  • 심재경 (부산대학교 대학원) ;
  • 윤순현 (부산대학교 기계설계공학과)
  • Published : 1998.02.01

Abstract

An experimental study on the flow characteristics was performed for a two-dimensional turbulent wall attaching offset jet at different oblique angles to a surface. The flow characteristics were investigated by using a split film probe with the modified Stock's calibration method. The jet mean velocity, turbulent intensity, wall static pressure coefficient profiles, and time-averaged reattachment point were measured at the Reynolds number Re (based on the nozzle width, D) ranging from 17700 to 53200, the offset ratio H/D from 2.5 to 10, and the inclined angle .alpha. from 0.deg. C to 40.deg. C. The Correlations between the maximum pressure position, minimum pressure position, and reattachment point and offset ratios, and inclined angles are presented.

Keywords

References

  1. Aerion Quar. v.11 Reattachment of a Two-Dimensional, Incompressible Jet to an Adjacent Flat Plate Borque, C.;Newmann, G.
  2. J. Fluid Mech. v.17 Two-Dimensional Reattachment Jet Flows Including the Effect of Curvature on Entrainment Sawyer, R.A.
  3. ASCE J. Hydraulic Div. v.94 Plane Turbulent Reattached Wall Jet Rajaratnam, N.;Subramanya, N.
  4. Advances in Fluidics Two-Dimensional Jet Attachment Perry, C.;F.T. Brown(ed.)
  5. ASME J. Fluids Engr. v.4 Effect of Curvature on the Turbulence of a Two-Dimensional Offset Jet Pelfray, J.R.R.;Liburdy, J.A.
  6. Transaction of the JSME v.22 no.165 Reattachment Flow Issuing from a Finite Width Nozzle Nozaki, T.;Hatta, K.;Nakashima, M.;Matsumura, H.
  7. Transaction of the JSME v.25 no.200 Reattachment Flow Issuing from a Finite Width Nozzle Nozaki, T;Hatta, K.;Nakashima, M.
  8. Ph. D. Thesis, KAIST, Dept. Mechanical Engineering Investigation on the Turbulence Structure of a Wall-Attaching Offset Jet Yoon, S.H.
  9. Transaction of the KSME v.19 no.1 An Investigation of Roughness Effects on 2-Dimensional Wall Attaching Offset Jet Flow Yoon, S.H.;Kim, D.S.;Song, H.B.;Park, S.C.
  10. ASME J. Fluid Engr. v.99 Design of Two-Dimensional Wind Tunnel Contraction Morel, T.
  11. Proc. Int. Symp. on Refined Flow Modeling and Turbulent Measurement Turbulence Measurements using Split-Film Anemometry Stock, D.E.;Jaballa, T.M.
  12. 대한기계학회 논문집 v.19 no.1 컴퓨터 원용 열선 및 열필름 프로브의 교정방법 개선에 대한 연구 김경천;윤순현;김대성;신영호
  13. NASA Report, ia-85871 Crossed Hot-Wire Data Acquisition and Reduction System Westphal, R.V.;Mehta, R.D.
  14. Experiments in Fluids v.6 no.6 Effects of the Separating Shear Layer on the Reattachment Flow Structure Part 1: Pressure and Turbulence Quantities Adams, E.W.;Johnston, J.R.
  15. AIAA J. v.22 no.12 Effect of Initial conditions on Turbulent Reattachment Downstream of a Backward Facing Step Westphal, R.V.;Johnston, J.P.
  16. Transaction of the JSME v.16 no.101 Studies in Heat Transfer to Turbulent Jets with Adjacent Boundaries (3rd report Mass Transfer to Plane Turbulent Jet Reattachment on an offset Parallel Plate_ Kumada, M.;Mabuchi, I.;Oyakawa, K.