  Numerical simulations of kinematic dynamo action in steady and 3-d ABC flows
are presented with special focus on growth rates and multiple periods of the
prescribed velocity field. It is found that the difference in growth rate is
due to differences in the recycling of the weakest part of the magnetic field.
Differences in the topology in cases with and without stagnation points in the
imposed velocity field are also investigated, and it is found that the
cigar-like structures that develop in the classical A=B=C dynamos, are replaced
by ribbon structures in cases where the flow is without stagnation points.
