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Scaling and intermittency in incoherent α-shear dynamo
Dynamo magnetic fields MHD turbulence
2011/8/17
Abstract: We consider mean-field dynamo models with fluctuating \alpha effect, both with and without shear. The \alpha effect is chosen to be Gaussian white noise with zero mean and given covariance. ...
In this work we investigate numerically the kinematic dynamo driven by spherical Couette flow. We calculate both 2D and 3D flows, different global rotation rates, opposite directions of differential ...
Dynamo Onset as a First-Order Transition: Lessons from a Shell Model for Magnetohydrodynamics
First-Order Transition Magnetohydrodynamics
2010/4/8
We carry out systematic and high-resolution studies of dynamo action in a shell model for magnetohydrodynamic (MHD) turbulence over wide ranges of the magnetic Prandtl number $Pr_{\rm M}$ and the magn...
Non-linear quenching of current fluctuations in a self-exciting homopolar dynamo,proved by feedback system theory
Non-linear quenching current fluctuations self-exciting homopolar dynamo feedback system theory
2009/11/13
Hide (Nonlinear Processes in Geophysics, 1998) has produced a new mathematical model of a self-exciting homopolar dynamo driving a series- wound motor, as a continuing contribution to the theory of th...