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Journal Articles Physical Review Letters Year : 2005

Numerical Study of Dynamo Action at Low Magnetic Prandtl Numbers

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Abstract

We present a three-pronged numerical approach to the dynamo problem at low magnetic Prandtl numbers PM . The difficulty of resolving a large range of scales is circumvented by combining direct numerical simulations, a Lagrangian-averaged model and large-eddy simulations. The flow is generated by the Taylor-Green forcing; it combines a well defined structure at large scales and turbulent fluctuations at small scales. Our main findings are (i) dynamos are observed from PM ≈
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Dates and versions

ensl-00180691 , version 1 (19-10-2007)

Identifiers

  • HAL Id : ensl-00180691 , version 1

Cite

Yannick Ponty, Pablo Mininni, David Montgomery, Jean-François Pinton, Hélène Politano, et al.. Numerical Study of Dynamo Action at Low Magnetic Prandtl Numbers. Physical Review Letters, 2005, 94, pp.164502. ⟨ensl-00180691⟩
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