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

  • 제26권7호
  • /
  • Pages.1005-1013
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  • 2002
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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얇은 정사각형 용기 내의 스핀-업 유동에 관한 수치해석적 연구

A Numerical Study on Spin-up Flows in a Shallow Quadrangular Container

  • 박재현 (동아대학교 대학원 기계공학과) ;
  • 서용권 (동아대학교 기계산업시스템공학부)
  • 발행 : 2002.07.01
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초록

Spin-up is a transient flow phenomenon occurring in a container when it starts to rotate from rest or its rotational speed increases from a low to high value. However, most studies on this subject have been for two-dimensional approximation. In this study, spin-up flows in a shallow rectangular container are analysed by using three-dimensional computation. We compared our results with those obtained by others using basically two-dimensional computation. Effect of two parameters, Reynolds number and liquid depth on the flow evolution is studied. We found that 2-D result is not accurate enough, and the vertical velocity distribution should be assumed of a fourth-order polynomial function for a better comparison.

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참고문헌

  1. van Heijst, G.J.F. Davies, P.A. and Davi G., 1990, 'Spin-up in a Rectangular Contai Phys . Fluids, A2, pp.150-191 https://doi.org/10.1063/1.857764
  2. van Heijst, G. J. F. Maas , L. R. M. and Will C. W. M., 1994, 'The Spin-up of Fluid in Rectangular Container with a Sloping Bottom' Fluid Mech., Vol. 265, pp. 125-159 https://doi.org/10.1017/S0022112094000789
  3. Suh. Y.K., 1993. 'Two-Dimensional Spin-up a Rectangle' Trans. KSME (B), Vol. 17, No. pp, 1805-1812
  4. Suh, Y.K., 1994, 'Numerical Study Two-Dimensional Spin-up in a Rectangle' Ph Fluids, Vol. 6, pp. 2333-2344 https://doi.org/10.1063/1.868183
  5. Henderson, D. M. Lopez, J. M. and Stewa D. L., 1996, 'Vortex Evolution in NAxisymmetric Impulsive Spin-up from Rest,' Fluid Mech., Vol. 324, pp. 109-134 https://doi.org/10.1017/S0022112096007859
  6. Choi, Y.H. and Suh, Y.K., 1999, 'Geostro FlolI's in a Container with a Vertical PI Trans. KCORE, Vol. 13, No. 4, pp.124-131
  7. Choi, Y.H., Park, J.K. and Suh. Y.K., 2001 Study on the Spin-up Flow in a Rectangu Container by Using Ekman Pumping Models, Trans. KSME (B), Vol. 25, No. 5, pp, 680-687
  8. Suh, Y. K. and Choi, Y. H. 2002, 'Study the Spin-up of Fluid in a Rectangular Cont Using Ekman Pumping Models,' J. Fluid Mech. Vol. 458, pp. 103-132 https://doi.org/10.1017/S0022112002007826
  9. Lim. K. O. and Kweon, T. J., 2001, 'The St for an Impulsive Spin-up Flow in a Shal Rectangular Container,' Trans. KSME (B), 25, No. 3, pp, 339-346