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Numerical Study of Wavy Taylor-Couette Flow(I) -Without an Axial Flow-
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 Title & Authors
Numerical Study of Wavy Taylor-Couette Flow(I) -Without an Axial Flow-
Hwang, Jong-Yeon; Yang, Gyeong-Su;
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 Abstract
The flow between two concentric cylinders, with the inner one rotating, is studied using numerical simulation. This study considers the identical flow geometry as in the experiments of Wereley and Lueptow[J. Fluid Mech., 364, 1998]. They carried out experiment using PIV to measure the velocity fields in a meridional plane of the annulus in detail. When Taylor number increases over the critical one, the flow instability caused by curved streamlines of the tangential flow induces Taylor vortices in the flow direction. As Taylor number further increases over another critical one, the steady Taylor vortices become unsteady and non-axisymmetrically wavy. The velocity vector fields obtained also show the same flow features found in the experiments of Wereley and Lueptow.
 Keywords
Taylor Vortex;Wavy Vortex, Travelling Wave, Taylor Number;Instability;Torque Coefficient;Growth Rate;Shift-and Reflect Symmetry;
 Language
Korean
 Cited by
1.
안쪽 축이 회전하는 환형관내 천이유동에 관한 연구,김영주;황영규;우남섭;

설비공학논문집, 2002. vol.14. 10, pp.833-843
2.
안쪽축이 회전하는 환형관내 천이유동에 관한 연구,김영주;김철수;황영규;

에너지공학, 2002. vol.11. 4, pp.299-305
3.
Wavy Taylor-Couette 유동에 대한 전산해석 (II) -축방향 유동이 있는 경우-,황종연;양경수;

대한기계학회논문집B, 2001. vol.25. 5, pp.705-712 crossref(new window)
4.
Taylor Vortex의 구조에 대한 연구,황종연;양경수;

대한기계학회논문집B, 2003. vol.27. 8, pp.1081-1088 crossref(new window)
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