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Numerical simulations for the DRESDYN precession dynamo

A. Giesecke1 , T. Albrecht2 , G. Gerbeth1 , T. Gundrum1 , F. Stefani1

1 Helmholtz-Zentrum Dresden-Rossendorf, P.O. Box 510119, D-01314 Dresden, Germany
2 Department of Mechanical and Aerospace Engineering, Monash University, VIC 3800, Australia

The next generation dynamo experiment currently under development at Helmholtz-Zentrum Dresden-Rossendorf (HZDR) will consist of a precessing cylindrical container filled with liquid sodium. We perform numerical simulations of kinematic dynamo action applying a velocity field that is obtained from hydrodynamic models of a precession driven flow. So far, the resulting magnetic field growth rates remain below the dynamo threshold for magnetic Reynolds numbers up to Rm = 2000. Figs 9, Refs 24.

Magnetohydrodynamics 51, No. 2, 293-302, 2015 [PDF, 5.77 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X