Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Experimental Study of Axial Slit Wall Effect on Taylor-Couette Flow

축방향 홈이 있는 Taylor-Couette 유동의 실험적 연구

  • 이상혁 (경상대학교 기계학공공학부) ;
  • 김형범 (경상대학교 항공기부품연구소)
  • Published : 2007.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

The effect of the axial slit of outer cylinder on Taylor-Couette flow was experimentally investigated. The radius ratio and aspect ratio of the model was 0.825 and 48, respectively. The depth of slits was 5mm and total 18 slits were azimuthally located along the inner wall of outer cylinder. We used PIV method to measure the flow field and applied refractive index matching method to resolve the image distortion due to the complex model geometry. The results showed the axial slit did not affect the transition from laminar Couette flow to Taylor vortex. The effect of slit wall appeared when the Reynolds number is larger than Re=143 and the slit model shows the transition to turbulent Taylor vortex flow above Re=143.

Keywords

References

  1. Taylor, G. I., 1923, 'Stability of a Viscous Liquid Contained between Two Rotating Cylinders,' Philos. Trans. R. A, Vol. 223, pp. 289-343 https://doi.org/10.1098/rsta.1923.0008
  2. Xiao, Q., Lim, T. T. and Chew, Y. T., 2002, 'Second Taylor Vortex Flow: Effects of Radius Ratio and Aspect Ratio,' Phys. Fluids, Vol. 14, pp. 1537-1539 https://doi.org/10.1063/1.1452475
  3. Andereck, C. David., Liu, S. S. and Swinney Harry. L., 1986, 'Flow Regimes in a Circular Couette System with Independently Rotating Cylinders,' J. Fluid Mech., Vol. 164, pp. 155-183 https://doi.org/10.1017/S0022112086002513
  4. Hwang, J. Y. and Yang, K. S., 2003, 'On the Structures of Taylor Votices,' Trans. of the KSME(B), Vol. 27, No. 8, pp. 1081-1088
  5. Heinrichs, R. M., Cannell, D. S., Ahlers, G. and Jefferson, M., 1988, 'Experimental Test of The Perturbation Expansion for The Taylor Instability at Various Wave Numbers,' Phys. Fluids, Vol. 31, pp. 250-255 https://doi.org/10.1063/1.866855
  6. Werely, S. T. and Lueptow, R. M., 1994, 'Azimuthal Velocity in Supercritical Circular Couette Flow,' Exps. Fluids, Vol. 18, pp. 1-9 https://doi.org/10.1007/BF00209355
  7. Werely, S. T. and Lueptow, R. M., 1998, 'Spatio-Temporal Character of Non-wavy and Wavy Taylor-Couette Flow,' J. Fluid Mech., Vol. 364, pp. 59-80 https://doi.org/10.1017/S0022112098008969
  8. Akonur, A. and Lueptow, R. M., 2003, 'Three-Dimensional Velocity Field for Wavy Taylor-Couette Flow,' Phys. Fluids, Vol. 15, pp. 947-960 https://doi.org/10.1063/1.1556615
  9. Czarny, O., Serre, E. and Bontoux, P., 2004, 'Interaction of Wavy Cylindrical Couette Flow with Endwalls,' Phys. Fluids, Vol. 16, pp. 1140-1148 https://doi.org/10.1063/1.1652671
  10. Cadot, O., Couder, Y., Daerr, A., Douady, S. and Tsinober, A., 1997, 'Energy Injection in Closed turbulent flow: Stirring Through Boundary Layers Versus Inertial Stirring,' Phys. Rev E, Vol. 56, pp. 427-433 https://doi.org/10.1103/PhysRevE.56.427
  11. Thomas H. van den Berg., Charles R. Coering., Detlef Lohse. and Daniel P. Lathrop., 2003, 'Smooth and Rough Boundaries in Turbulent Taylor-Couette Flow,' Phys. Rev E, Vol. 68, 036307 https://doi.org/10.1103/PhysRevE.68.036307
  12. Cole, J. A., 1976, 'Tayor-Vortex Instability and Annulus-Length Effects,' J. Fluid Mech., Vol. 75, pp. 1-15 https://doi.org/10.1017/S0022112076000098
  13. Lim, T. T., Chew, Y. T. and Xiao, Q., 1998, 'A New Flow Regime in Taylor-Couette Flow,' Phys. Fluids, Vol. 10, pp. 3233-3235 https://doi.org/10.1063/1.869851