Turbulent Taylor-Couette vortex flow between large radius ratio concentric cylinders
Batten, W.M.J., Turnock, S.R., Bressloff, N.W. and Abu-Sharkh, S.M. (2004) Turbulent Taylor-Couette vortex flow between large radius ratio concentric cylinders. Experiments in Fluids, 36, (3), 419-421. (doi:10.1007/s00348-003-0739-1).
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Turbulent Taylor vortices between two concentric cylinders have been studied at a very high radius ratio of 0.985, equivalent to that found in relatively small underwater thruster units (typically with gaps of 2 mm). In order to study the flow at this radius ratio, a 1.42-m diameter experimental apparatus (with a rotating inner cylinder and a stationary outer cylinder) was constructed possessing a gap of 10 mm. Consequently, air bubbles could be visualised translating in water. A method was developed for identifying Taylor vortex properties from filtered digital images of the air bubbles and summing intensities to produce bubble density distributions. Whereas individual instantaneous images can be misleading, averaged bubble density distributions make it possible to identify vortex separation sizes and the positions of vortex outflow boundaries.
|Subjects:||V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering|
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences
University Structure - Pre August 2011 > School of Civil Engineering and the Environment
|Date Deposited:||22 Jul 2008|
|Last Modified:||27 Mar 2014 18:36|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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