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ISSN Online: 2377-424X

ISBN Print: 1-56032-797-9

International Heat Transfer Conference 11
August, 23-28, 1998, Kyongju, Korea

HEAT TRANSFER IN CIRCULAR COUETTE FLOW WITH BUOYANCY: RADIUS RATIO EFFECTS

Get access (open in a dialog) DOI: 10.1615/IHTC11.3200
pages 293-298

Abstract

The impact of thermal buoyancy effects on the development of circular Couette flow is investigated numerically. The three-dimensional equations of motion are discretized using a hybrid Chebyshev collocation / Fourier spectral method. The problem geometry consists of a vertical annulus of finite length, with a rotating inner cylinder and stationary outer cylinder and end-walls. The isothermal inner and outer cylinders are held at different temperatures, and the flow is generated by combined heating and rotation of the inner cylinder. Transitions occurring with increasing Re for several combinations of Gr and Pr are characterized over a wide range of the radius ratio, 0.25 ≤ η ≤ 0.8, and the resulting heat transfer rates are documented. The results are found to be consistent with those of previous related studies.