AI Article Synopsis
- The study investigates how a rotating liquid confined in a system reacts to circumferential jets, leading to the development of secondary flows.
- The flow behavior changes depending on the strength of the jets and the slope of the end cap, with low strengths influenced by the slope and higher strengths primarily affected by jet profile asymmetry.
- This asymmetry, along with the Coriolis force, results in a net radial velocity and generates secondary zonal flow patterns within the liquid.
Article Abstract
We report on experiments and modeling on a rotating confined liquid that is forced by circumferential jets coaxial with the rotation axis, wherein system-scale secondary flows are observed to emerge. The jets are evenly divided in number between inlets and outlets and have zero net mass transport. For low forcing strengths the sign of this flow depends on the sign of a sloped end cap, which simulates a planetary β plane. For increased forcing strengths the secondary flow direction is insensitive to the slope sign, and instead appears to be dominated by an asymmetry in the forcing mechanism, namely, the difference in radial divergence between the inlet and outlet jet profiles. This asymmetry yields a net radial velocity that is affected by the Coriolis force, inducing secondary zonal flow.
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| http://dx.doi.org/10.1103/PhysRevE.99.023108 | DOI Listing |
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