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Numerical study of a turbulent swirling flow of a liquid metal driven by a Lorentz force

DOI: 10.1615/ICHMT.2006.TurbulHeatMassTransf.980
pages 477-480

Petr A. Nikrityuk
CIC Virtuhcon, Department for Energy Process Engineering and Chemical Engineering, Technische Universitat Bergakademie Freiberg, Fuchsmuhlenweg 9, 09596 Freiberg, Germany

K. Eckert
Magnetofluiddynamics, Institute of Fluid Dynamics, Technische Universität Dresden, Mommsenstr. 13, 01062 Dresden, Germany

Roger Grundmann
Instiute of Aerospace Engineering, Technische Universitat Dresden, Mommsenstr., 13, 01062 Dresden, Germany

Аннотация

We present axisymmetric numerical simulations of the turbulent flow of a liquid metal driven by a low-frequency, low-induction rotating magnetic field, whose magnetic Taylor number is in the range (1.2-46)Tacr2D with Tacr2D given by Grants and Gerbeth [I. Grants, G. Gerbeth. J. Fluid Mech, 431:407-426, 2001]. The computations were performed for cylindrical container of aspect ratio (diameter / height) R equals to unity. The axisymmetric numerical simulations (ANS) can accurately reproduce the experimental data available. The prediction of a low Re formulation of the K − ω turbulence model with modified boundary condition for ω on the wall agree well with the ANS data provided for Ta < 1.2 · 105 (E > 2 · 10−4). The numerical simulations showed that the interior core of the liquid rotates faster than the periphery with increase of the Lorentz force.

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