Turbulence in Electrically Conducting Fluids Driven by Rotating and Travelling Magnetic Fields

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Contributors

Abstract

The turbulent flow driven by rotating and travelling magnetic fields in a closed cylinder is investigated by means of direct numerical simulations (DNS) and large eddy simulations (LES). Our model is based on the low-induction, low-frequency approximation and employs a spectral-element/Fourier method for discretisation. The spectral vanishing viscosity (SVV) technique was adopted for the LES. The study provides first insights into the developed turbulent flow. In the RMF case, Taylor-Görtler vortices remain the dominant turbulence mechanism, as already in the transitional regime. In contrast to previous predictions we found no evidence that the vortices are confined closer to the wall for higher forcing. In the TMF more than 50 percent of the kinetic energy is bound to the turbulent fluctuations, which renders this field an interesting candidate for mixing applications.

Details

Original languageEnglish
Title of host publicationProgress in Turbulence III
Place of PublicationBerlin, Heidelberg
PublisherSpringer, Berlin [u. a.]
Pages215-218
ISBN (electronic)978-3-642-02225-8
ISBN (print)978-3-642-02224-1
Publication statusPublished - 2009
Peer-reviewedYes

Publication series

SeriesSpringer proceedings in physics
Volume131
ISSN0930-8989

External IDs

Scopus 85034635312
ORCID /0000-0002-6485-3825/work/192581210