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http://dx.doi.org/10.5407/JKSV.2010.8.3.035

Study of Different Radial Temperature Gradient Effect on Taylor-Couette Flow Instability  

Cha, Jae-Eun (Korea Atomic Energy Research Institute)
Liu, Dong (Research Center for Aircraft Parts Technology, Gyeongsang National University)
Tu, Xin Cheng (School of Mechanical and Aerospace Engineering, Gyeongsang National University)
Kim, Hyoung-Bum (Research Center for Aircraft Parts Technology, Gyeongsang National University)
Publication Information
Journal of the Korean Society of Visualization / v.8, no.3, 2010 , pp. 35-40 More about this Journal
Abstract
We have investigated different radial temperature gradient effect on the stability of Taylor-Couette flow. The radius ratio and aspect ratio of the model was 0.825 and 48, respectively. Two heating exchangers were used for generating different temperature gradient along the radial direction. The change of flow regime in the Taylor-Couette flow was studied by increasing the Reynolds number. The results showed that: as Gr is increased in helical vortex flow regime, the vortices with the same direction of convection flow increased in size, and the vortex moving velocity also increased. It is also shown that the presence of temperature gradient obviously increased the flow instability when the Richardson number is larger than 0.0045.
Keywords
Taylor-Couette flow; Temperature gradient; DPIV;
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1 Lee, S. H., Chung, H. T., Park, C. W. and Kim, H. B., 2009, “Experimental investigation of slit wall effects on Taylor-Couette flow,” Fluid Dyn. Res., Vol. 41, 045502.   DOI   ScienceOn
2 Lepiller, V., Goharzadeh, A., Prigent, A. and Mutabazi, I., 2008, “Weak temperature gradient effect on the stability of the circular Couette flow,” Euro. Phys(B). J., Vol. 61, pp. 445-455.   DOI
3 Takhar, H. S., Ali, M. A. and Soundalgekar, V. M., 1988, “Effects of radial temperature gradient on the stability of flow in a narrow-gap annulus with constant heat flux at the inner rotating cylinder,” Heat and Mass Tran., Vol. 22, pp. 23-28.
4 Lee, Y. N. and Minkowycz, W. J., 1989, “Heat transfer characteristics of the annulus of two-coaxial cylinders with one cylinder rotating,” J. Heat and Mass Trans., Vol. 32, pp. 711-722.   DOI   ScienceOn
5 Cole, J. A. 1976, “Taylor-vortex instability and annulus-length effects,” J. Fluid Mech., Vol. 75, pp. 1-15.   DOI   ScienceOn
6 Deters, T. and Edgers, C., 2005, “The Taylor-Couette system with radial temperature gradient,” J. Physics: Conference Series, pp. 138-142.
7 Ball, K. S., Farouk, B. and Dixit, V. C., 1989, “An experimental study of heat transfer in a vertical annulus with a rotating inner cylinder,” J. Heat and Mass Trans., Vol. 32, pp. 1517-1527.   DOI   ScienceOn
8 Werely, 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.   DOI   ScienceOn
9 Taylor G. I., 1923, “Stability of a viscous liquid contained between two rotating cylinders,” Phil. Trans. R. Soc. London, Vol. 223, pp. 289-343.   DOI
10 Jones, C. A., 1985, “The transition to wavy Taylor vortices,” J. Fluid Mech., Vol. 157, pp. 135-162.   DOI   ScienceOn
11 Rigopoulos, J., Sheridan, J. and Thompson, M. C., 2003, “State selection in Taylor-vortex flow reached with an accelerated inner cylinder,” J. Fluid Mech., Vol. 489, pp. 79-99.   DOI   ScienceOn
12 Marques, F. and Lopez, J. M., 2006, “Onset of threedimensional unsteady states in small-aspect-ratio Taylor-Couette flow,” J. Fluid Mech., Vol. 561, pp. 255-277.   DOI   ScienceOn