Reynolds number scaling of the influence of boundary layers on the global behavior of laboratory quasi-Keplerian flows.

Phys Rev E Stat Nonlin Soft Matter Phys

Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08544, USA.

Published: October 2015

We present fluid velocity measurements in a modified Taylor-Couette device operated in the quasi-Keplerian regime, where it is observed that nearly ideal flows exhibit self-similarity under scaling of the Reynolds number. In contrast, nonideal flows show progressive departure from ideal Couette as the Reynolds number is increased. We present a model that describes the observed departures from ideal Couette rotation as a function of the fluxes of angular momentum across the boundaries, capturing the dependence on Reynolds number and boundary conditions.

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http://dx.doi.org/10.1103/PhysRevE.92.043005DOI Listing

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