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Numerical simulations for the DRESDYN precession dynamo

2015; University of Latvia; Volume: 51; Issue: 2 Linguagem: Inglês

10.22364/mhd.51.2.13

ISSN

1574-0579

Autores

André Giesecke, Thomas Albrecht, G. Gerbeth, Thomas Gundrum, Frank Stefani,

Tópico(s)

Geophysics and Gravity Measurements

Resumo

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.

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