Axial Direction Velocity and Wall shear Stress Distributions of Turbulent Steady Flow in a Curved Duct

곡관덕트에 난류정상유동의 축방향 속도분포와 벽면전단응력분포

  • Published : 2001.01.01

Abstract

In this paper, an experimental investigation of characteristics of developing turbulent steady flows in a square-sectional $180^{\circ}$curved duct is presented. The experimental study using air in a square-sectional $180^{\circ}$ curved duct carryed out to measure axials direction velocity and wall shear stress distrbutions by using Laser Dopper Velocimeter(LDV) system with data acquistion and processing the system of FIND6260 softwere at 7 sections from the inlet($\phi=0^{\circ}$) to the outlet($\phi=180^{\circ}$) in $301^{\circ}$ intervals of a curved duct.

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References

  1. Proc. R. Soc, Ser. A. 84-568 Flow of Water in Curved Pipe Eustice, J.
  2. Phil. Mag. S. v.4 no.20 Note on the Motion of Fluid in a Curved Pipe Dean, W, R.
  3. J. Fluid Mech v.83 laminar Flow in a Square Duct of Strong Curvature Humohery, J. A.;Taylor, A. M. K.;Whitelaw, J. H.
  4. AIChE. J v.206 no.4 Entry Region for Steady Viscous Flow in Coiled Circular Pipes Austin, L. R.;Seader, J. D.
  5. J. Fluid Mech v.151 The Development and Structure of Primary and Secondary Flow in a Curved Square Duct Hille, P.;Vehrenkamp, R.
  6. Ph.D Thesis Korea Univ. Study on the Characteristics of Turbulent Flow in Rotating Square-sectioned 90˚ Bend G. H. Lee
  7. Ph. D Thesis Chosun Univ A Study Flow Characteristics of Developing Transitional Steady, Transitional Oscillatory and Transitional Pulsating Flows in a Curved Duct. T. G. Bong