The generation of magnetic fields by a flow with chaotic streamlines

Details The generation of magnetic fields by a flow with chaotic streamlines The generation of magnetic fields by a flow with chaotic streamlines

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.220..221g&link_type=abstract

In ESA The Hydromagnetics of the Sun p 221-222 (SEE N85-25091 14-92)

Computer Science

Dynamo Theory, Kinematic Equations, Stellar Magnetic Fields, Laminar Flow, Low Reynolds Number, Magnetic Field Configurations, Magnetohydrodynamic Flow, Velocity Distribution

Scientific paper

Kinematic dynamo action due to a spatially periodic flow with regions of chaotic streamlines is investigated numerically, using a spectral method. Dynamos appear to be the rule rather than the exception, but in the most extensively investigated case they occur in 2 (or more) windows, for values of the magnetic Reynolds number Rm between 8 and 18, and for Rm 27 up to 200 or more. The structure of the magnetic field generated is complex, but appears correlated with the location of the choatic regions and with the stagnation points of the flow, in cases where these exist.

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