Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Numerical Study of Flow Characteristics due to Interaction Between a Pair of Vortices in a Turbulent Boundary Layer

  • Yang, Jang-Sik (Advanced Environment & Energy Technology Research Institute, K.K. Incinerator Engineering & Construction Co., Ltd)
  • Published : 2006.01.01
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Abstract

This paper represents a numerical study of the flow field due to the interactions between a pair of vortices produced by vortex generators in a rectangular channel flow. In order to analyze longitudinal vortices induced by the vortex generators, the pseudo-compressibility method is introduced into the Reynolds-averaged Navier-Strokes equations of a 3-dimensional unsteady, incompressible viscous flow. A two-layer $k-{\epsilon}$ turbulence model is applied to a flat plate 3-dimensional turbulence boundary to predict the flow structure and turbulence characteristics of the vortices. The computational results predict accurately the vortex characteristics related to the flow field, the Reynolds shear stresses and turbulent kinetic energy. Also, in the prediction of skin friction characteristics the computational results are reasonably close to those of the experiment obtained from other researchers.

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References

  1. Anderson, B. H. and Gibb, J., 1992, 'Application of Computational Fluid Dynamics to the Study of Vortex Flow Control for the Management of Inlet Distortion,' AIAA paper 92-3177
  2. Chang, J. L. C., Kwak, D. C., Rogers, S. E. and Yang, R. J., 1988, 'Numerical Simulation Methods of Incompressible Flows and an Application to the Space Shuttle Main Engine,' International Journal for numerical methods in fluids, Vol. 8, pp. 1241-1268 https://doi.org/10.1002/fld.1650081011
  3. Eibeck, P. A. and Eaton, J. K., 1987, 'Heat Transfer Effects of a Longitudinal Vortex Embedded in a Turbulent Boundary Layer,' Journal of Heat Transfer, Vol. 109, pp. 16-24 https://doi.org/10.1115/1.3248039
  4. Johnston, J. P., 1960, 'On the Three-Dimensional Turbulent Boundary Layer Generated by Secondary Flow,' Journal of Basic Engineering, pp.233-248
  5. Kim, J. Q., Ryou, H. S., Jeong, J. Y. and Dedousis, V., 1996, 'Numerical Simulation of 3-D Turbulent Flows with Imbedded Longitudinal Vortex,' Computational Fluid Dynamics Journal, Vol. 4, No.4, pp.473-488
  6. Kim, W. J. and Patel, V. C., 1994, 'Influence of Streamwise Curvature on Longitudinal Vortices Imbedded in Turbulent Boundary Layers,' Journal of Computers Fluid, Vol. 23, No.5, pp. 647-673 https://doi.org/10.1016/0045-7930(94)90008-6
  7. Kwak, D. C., Shanks, S. P. and Chakravarthy, S., 1986, 'A Three-Dimensional Incompressible Navier-Stokes Flow Solver Using Primitive Variables,' AIAA Journal, Vol. 24, No.3, pp. 390-396 https://doi.org/10.2514/3.9279
  8. Lee, Y. K. and Kim, H. D., 2004a, 'Vortical Flows over a Delta Wing at High Angles of Attack,' KSME International Journal, Vol. 18, No.8, pp. 1042-1051
  9. Lee, Y. K. and Kim, H. D., 2004b, 'Vertical Flows over a LEX-Delta Wing at High Angles of Attack,' KSME International Journal, Vol. 18, No. 12, pp. 2273-2283 https://doi.org/10.1007/BF02990232
  10. Lowson, M. V., 1989, 'Visualization Measurements of Vortex Flows,' AIAA paper 89-0191
  11. Pauley, W. R. and Eaton, J. K., 1988, 'The Fluid Dynamics and Heat Transfer Effects of Stream wise Vortices Embedded in a Turbulent Boundary Layer,' Report No. MD-51, Department of Mechanical Engineering, Stanford University
  12. Phillips, W. R. C. and Graham, J. A. H., 1984, 'Reynolds Stress Measurements in a Turbulent Trailing Vortex,' Journal of Fluid Mechanics, Vol. 147, pp. 353-371 https://doi.org/10.1017/S0022112084002123
  13. Wendt, B. J. and Hingst, W. R., 1994, 'Flow Structure in the Wake of a Wishbone Vortex Generator,' AIAA Journal, Vol. 32, No. 11, pp. 2234-2240 https://doi.org/10.2514/3.12282
  14. Yang, J. S. and Lee, K. B., 2000, 'A Numerical Simulation of Longitudinal Vortex in Turbulent Boundary Layers,' Transaction of the KSME B, Vol. 24, No.6, pp. 802-813
  15. Zhu, J. X., Mitra, N. K. and Fiebig, M., 1993, 'Effects of Longitudinal Vortex Generators on Heat Transfer and Flow Loss in Turbulent Channel Flows,' International Journal of Heat and Mass Transfer, Vol. 36, No.9, pp.2239-2347 https://doi.org/10.1016/S0017-9310(05)80155-3