Dynamo action in turbulent flows

Details Dynamo action in turbulent flows Dynamo action in turbulent flows

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.505...95a&link_type=abstract

In: SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference and IAU Colloquium 188, 11 - 15 Jun

Physics

Solar Dynamo

Scientific paper

We present results from numerical simulations of kinematic and nonlinear MHD dynamo action produced by turbulent flows. Traditionally, turbulence was thought to be essential to dynamo action. There is new evidence that indicates that laminar and turbulent dynamos are surprisingly similar, with growth rates similar to large scale turn-over time in both cases. An analysis of the Lorentz work and Joule dissipation shows that dynamo occurs primarily in regions where the field is weak by bending and stretching the magnetic field lines.

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