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

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

DOI QR Code

On the Structures of Taylor Vortices.

Taylor Vortex의 구조에 대한 연구

  • Published : 2003.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

Numerical investigation on the structures of various Taylor vortices induced in the flow between two concentric cylinders, with the inner one rotating and with a pressure-driven axial flow imposed, is carried out, and compared with the experiments of Wereley and Lueptow [Phys. fluid, 11(12), 1999] who studied the Taylor vortices using PIV in detail. Especially, the properties of helical vortices and random wavy vortices are discussed, and their three-dimensional structures are visualized using the numerical data. Our simulation also predicts that random wavy vortices have quasi-periodic movement which can be explained by traveling waves formed in the azimuthal direction. The numerical results are well consistent with the experimental findings of Wereley and Lueptow.

Keywords

References

  1. Mullin, T. and Blohm, C., 2001, 'Bifurcation Phenomena in a Taylor-Couette Flow with Asymmetric Boundary Conditions,' Phys. Fluids, Vol. 13, No. 1, pp. 136-140 https://doi.org/10.1063/1.1329906
  2. Wereley, 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
  3. Hwang, J. Y. and Yang, K. S., 2001, 'Numerical Study of Wavy Taylor-Couette Flow(I), without an Axial Flow,'' KSME B, Vol. 25, No. 5, pp. 697-704
  4. Wereley, S. T. and Lueptow, R. M., 1999, 'Velocity Field for Taylor-Couette Flow with an Axial Flow,' Phys. Fluids, Vol. 11, No. 12, pp. 3637-3649 https://doi.org/10.1063/1.870228
  5. Hwang, J. Y. and Yang, K. S., 2001, 'Numerical Study of Wavy Taylor- Couette Flow (II), without an Axial Flow,'' KSME B, Vol. 25, No. 5, pp. 705-712
  6. Lueptow, R. W., Docter, A. and Min, K., 1992, 'Stability of Axial Flow in Ann Annulus with a Rotating Inner Cylinder,' Phys. Fluids, Vol. 4, No. 11, pp. 2446-2455 https://doi.org/10.1063/1.858485
  7. Chung, K. C. and Astill, K. N., 1977, 'Hydrodynamic Instability of Viscous Flow between Rotating Coaxial Cylinders with Fully Developed Axial Flow,' J. Fluid Mech., Vol. 81, pp. 641-655 https://doi.org/10.1017/S0022112077002274
  8. Rosenfeld, M., Kwak, D., and Vinokur, M., 1994, 'A Fractional Step Solution Method for the Unsteady Incompressible Navier-Stokes Equations in Generalized Coordinate Systems,' Journal of Computational Physics, Vol. 94, pp. 102-137 https://doi.org/10.1016/0021-9991(91)90139-C
  9. Hunt, J. C. R., Abell, C. J., Peterka, J. A., and Woo, H., 1978, 'Kinematical Studies of the Flows Around Free or Surface-Mounted Obstacles; Applying Topology to Flow Visualization,' J. Fluid Mech., vol. 86, part 1, pp. 179-200 https://doi.org/10.1017/S0022112078001068