Critical magnetic Prandtl number for small-scale dynamo.

We report a series of numerical simulations showing that the critical magnetic Reynolds number Rm(c) for the nonhelical small-scale dynamo depends on the Reynolds number Re. Namely, the dynamo is shut down if the magnetic Prandtl number Pr(m)=Rm/Re is less than some critical value Pr(m,c)< ap...

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Bibliographic Details
Main Authors: Schekochihin, A, Cowley, S, Maron, J, McWilliams, J
Format: Journal article
Language:English
Published: 2004