Reduction of Ekman circulation within Taylor-Couette flow |
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Authors: | M. J. Burin H. Ji E. Schartman R. Cutler P. Heitzenroeder W. Liu L. Morris S. Raftopolous |
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Affiliation: | (1) Princeton Plasma Physics Laboratory, Princeton University, Princeton, NJ, USA;(2) Department of Astrophysical Sciences, Princeton University, Princeton, NJ, USA |
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Abstract: | We demonstrate experimentally that independently rotating intermediary end-rings between the cylinders of a Taylor–Couette apparatus can be utilized to reduce friction-driven secondary flow, i.e. Ekman circulation. This allows for velocity profiles in a device of small aspect ratio to be less constrained by ‘end effects’, so that the resulting wide-gap flows can be made to have a radial distribution of circumferential velocity that resembles a narrow-gap Couette solution. |
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