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Taylor-Görtler vortices in the flow driven by a rotating magnetic field in a cylindrical container

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Abstract

Taylor-Görtler vortices play an important role in the flow driven by rotating magnetic field in a closed cylindrical container. The visualization of these structures is essential to understand their physics and their impact on the dynamics of the flow. We present a study of various methods for identifying vortex cores, including the so-called λ2 andQriteria. While λ2 is, probably, the better indicator it is more sensitive to numerical noise and thus less effective in devising 3D vortex structures. Here, the Q criterion proved particularly useful when applied to the fluctuation velocity field.

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Authors and Affiliations

  1. Institute for Aerospace Engineering, TU Dresden, D-01062, Dresden, Germany

    Fraňa K., Stiller J. & Grundmann R.

Authors
  1. Fraňa K.
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  2. Stiller J.
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  3. Grundmann R.
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Correspondence to Fraňa K..

Additional information

Karel Fraňa: He received his M.Sc. (Eng.) degree in 1999 from Technical University of Liberec in Czech Republic and his Ph.D. in 2004 from the same university. Nowadays he works at Institute of Aerospace Engineering at TU Dresden, Germany. His research interests focus on the numerical method (finite element method) and on the magnetically driven flow investigated by using direct numerical simulations.

Jörg Stiller: He is a lecturer (Dozent) for magnetofluiddynamics at the Institute for Aerospace Engineering at TU Dresden, Germany. He received his Ph.D. in 1994 from TU Dresden. His research activities focus on numerical methods, including adaptive finite element and spectral element techniques for incompressible and compressible flows.

Roger Grundmann: He studied turbo-engineering from 1964 to 1970 at Technical University of Berlin, Ph.D. in 1972 at TU Berlin. From 1972 until 1992 he was as a research scientist at DLR in Cologne and Göttingen and from 1985 to 1991 a professor at the Van Karman Institute for Fluid Dynamics in Brussels. Since 1993 he was a professor for thermofluiddynamics and applied aerodynamics at the TU Dresden. His research interests are fluid mechanics, computational fluid dynamics, aerodynamics and turbulence modeling.

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Fraňa, K., Stiller, J. & Grundmann, R. Taylor-Görtler vortices in the flow driven by a rotating magnetic field in a cylindrical container. J Vis 8, 323–330 (2005). https://doi.org/10.1007/BF03181551

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  • DOI: https://doi.org/10.1007/BF03181551

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