Research

Rotating spin-up in three dimensions


Reference:

Zhong, J.-Q., Patterson, M. and Wettlaufer, J., 2009. Rotating spin-up in three dimensions. In: 62nd Annual Meeting of the APS Division of Fluid Dynamics, 2009-11-22 - 2009-11-24, Minneapolis, Minnesota.

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Official URL:

http://meetings.aps.org/link/BAPS.2009.DFD.MR.2

Abstract

Motivated by previous studies we revisit the well known transient spin up problem, with and without buoyancy forcing, using a new experimental technique. In so doing, we are able to examine the fluids behavior by extracting a series of two-dimensional velocity fields at multiple levels simultaneously thereby producing a three-dimensional view of the evolving flow. The results provide startling detail of the rich three dimensional structure of the flow, and reveal, amongst other things, depth dependent axisymmetric pattern formation and breakdown. Vertical slices of the velocity field reveal highly localized up and downwellings. Our quantitative probing produces continuous velocity fields amenable to direct comparison with simulations.

Details

Item Type Conference or Workshop Items (Paper)
CreatorsZhong, J.-Q., Patterson, M. and Wettlaufer, J.
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
RefereedNo
StatusPublished
ID Code20271

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