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Computational Flow Visualization of Mixed Fluid Motions in the Annuli of Heated Rotating Mercury Slip-Rings
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Abstract
A computational flow visualization study was made on the mixed fluid motions and thermal patterns of liquid mercury (Pr=0.02) contained within a horizontal slip ring annular region of radius ratio 2.6. Visualizations show that the liquid mercury were found to have points of maximum and minimum thermal plumes at the interior nodes, instead of the top and bottom nodes which is known for the air (Pr=0.7). For liquid mercury, when the inner cylinder is made to rotate, the thermal plume moves in a direction opposite to that of the rotation of the inner cylinder. This thermal plume movement is opposite to that observed for the high Prandtl number fluid flow where the mono-thermal plume on top of the inner cylinder moves in the same direction as the inner rotating cylinder.
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Citation
Lee, T., "Computational Flow Visualization of Mixed Fluid Motions in the Annuli of Heated Rotating Mercury Slip-Rings," SAE Technical Paper 940020, 1994, https://doi.org/10.4271/940020.Also In
References
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- Lee, T.S. Soh, C.L. 1985 “Computational and Experimental Studies of Convective Heat Transfer and Fluid Flow in Eccentric Annuli of Rotating Cylinders” Proceedings of 3rd Australasian Conference on Heat and Mass Transfer The University of Melbourne 1985 17 24
- Lee, T.S. Wijeysundera, N.E. Yeo, K.S. 1986 “Convection in Eccentric Annuli with Inner Cylinder Rotation” Journal of American Institute of Aeronautics and Astronautics (AIAA) 24 1 January 1986 170 171
- Peaceman, D.W. Rachford, H.H. 1955 “Numerical solution of parabolic and elliptic differential equations” J. Soc. Indust. Appi. Math. 3 1 1955 28 41