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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2005.10
- 수록면
- 1,101 - 1,110 (10page)
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In this paper we present the numerical results of the behavior of the horizontal vortex generated by ejecting a liquid vertically upward from an orifice into the bulk fluid above the orifice. The numerical calculation has been performed for the axi-symmetric Navier-Stokes equation. A simple flow-visualization experiment was also conducted to qualitatively verify the numerical solutions. Three cases of the flow configurations studied in this paper are; firstly, the vortex was generated without any background rotation, secondly, the vortex was made under a full background rotation,, thirdly, the vortex was made during the spin-up process such that only the region adjacent to the side wall was set into motion viewed in the inertial frame of reference. It was shown that the swirl flow at the inlet boundary affects considerably the formation, development of the vortex for the second case. In the third case, it was remarkable to see that the vortex cannot penetrate into the region near to the side wall of the tank, because of the strong swirl flow, corresponding high pressure gradient in the region.
목차
Abstract
1. 서론
2. 수치해석
3. 가시화 실험
4. 수치해석 / 실험 결과 및 검토
5. 결론
후기
참고문헌
참고문헌 (24)
참고문헌 신청
Julien, K., Legg, S., McWilliams, J. and Werne, J., 1999, “Plumes in Rotating Convection,” J. Fluid Mech., Vol. 391, pp. 151~187.
Bush, J.W.M. and Woods, A.W., 1999, “Vortex Generation by Line Plumes in a Rotating Stratified Fluid,” J. Fluid Mech., Vol. 388, pp. 289~313.
Shusser, M. and Gharib, M., 2000, “A Model for Vortex Ring Formation in a Starting Buoyant Plume,” J. Fluid Mech., Vol. 416, pp. 173~185.
Kumagai, I., 2002, “On the Anatomy of Mantle Plumes: Effect of the Viscosity Ratio on Entrainment and Stirring,” Earth and Planetary Sci. Lett., Vol. 198, pp. 211~224.
Kopiev, V.F. and Chernyshev, S.A., 1997, “Vortex Ring Eigen-Oscillations as a Source of Sound,” J. Fluid Mech., Vol. 341, pp. 19~57.
Bush, J.W.M. and Woods, A.W., 1999, “Vortex Generation by Line Plumes in a Rotating Stratified Fluid,” J. Fluid Mech., Vol. 388, pp. 289~313.
Shusser, M. and Gharib, M., 2000, “A Model for Vortex Ring Formation in a Starting Buoyant Plume,” J. Fluid Mech., Vol. 416, pp. 173~185.
Kumagai, I., 2002, “On the Anatomy of Mantle Plumes: Effect of the Viscosity Ratio on Entrainment and Stirring,” Earth and Planetary Sci. Lett., Vol. 198, pp. 211~224.
Kopiev, V.F. and Chernyshev, S.A., 1997, “Vortex Ring Eigen-Oscillations as a Source of Sound,” J. Fluid Mech., Vol. 341, pp. 19~57.
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