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Seventh International Symposium on Turbulence and Shear Flow Phenomena
July, 28-31, 2011, Ottawa Convention Centre, Ottawa, Canada

DOI: 10.1615/TSFP7

INFLUENCE OF AXIAL MISALIGNMENT TO A TMF DRIVEN FLOW

pages 1-4
DOI: 10.1615/TSFP7.1180
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摘要

The travelling magnetic field (short: TMF) is a commonly used alternating magnetic field, which is applied e.g. to tailor heat and mass transport during crystal growth processes. Numerical studies usually assume ideal configurations such as a perfectly adjusted magnetic field. However, an ideal setup can be hardly realized in "real processes". In the present work, we study the sensitivity of a TMF driven fluid flow within a cylindrical configuration, when a small offset is introduced between the container's axis and that one of the magnetic field. It will be shown, that already a small misalignment affects the flow seriously. Especially in supercritical regimes the mean flow as well as the turbulent structures changes considerably, whereas the variations in the laminar regime correlate approx-imately with the magnitude of the axes' shift.

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