Statistical simulation of the magnetorotational dynamo.

  title={Statistical simulation of the magnetorotational dynamo.},
  author={J. Squire and Amitava Bhattacharjee},
  journal={Physical review letters},
  volume={114 8},
Turbulence and dynamo induced by the magnetorotational instability (MRI) are analyzed using quasilinear statistical simulation methods. It is found that homogenous turbulence is unstable to a large-scale dynamo instability, which saturates to an inhomogenous equilibrium with a strong dependence on the magnetic Prandtl number (Pm). Despite its enormously reduced nonlinearity, the dependence of the angular momentum transport on Pm in the quasilinear model is qualitatively similar to that of… CONTINUE READING