A high magnetic Reynolds number dynamo
Abstract
A boundarylayer solution to a high magnetic Reynolds number R periodic dynamo model shows that: (1) flux expulsion forces the magnetic field into flux sheets; (2) the principal contribution to the α effect arises from regions of flow stagnation along a flux sheet; and (3) the α effect scales as R^{}^{1}^{/}^{2}. Arguments for these effects persisting in turbulent dynamos are given.
 Publication:

Physics of Fluids
 Pub Date:
 April 1987
 DOI:
 10.1063/1.866304
 Bibcode:
 1987PhFl...30.1079P
 Keywords:

 Boundary Layer Equations;
 Dynamo Theory;
 High Reynolds Number;
 Solar Cycles;
 Boundary Value Problems;
 Computational Fluid Dynamics;
 Magnetic Fields;
 Velocity Distribution;
 Plasma Physics