Numerical Study of Dynamo Action at Low Magnetic Prandtl Numbers
Numerical Study of Dynamo Action at Low Magnetic Prandtl Numbers
We present a three-pronged numerical approach to the dynamo problem at low magnetic Prandtl numbers P(M). The difficulty of resolving a large range of scales is circumvented by combining direct numerical simulations, a Lagrangian-averaged model and large-eddy simulations. The flow is generated by the Taylor-Green forcing; it combines a well …