title: Large-scale dynamo action driven by velocity shear and rotating convection.
abstract: By incorporating a large-scale shear flow into turbulent rotating convection, we show that a sufficiently strong shear can promote dynamo action in flows that are otherwise nondynamos. Our results are consistent with a dynamo driven either by the shear-current effect or by a fluctuating alpha effect interacting with the shear, but not with either a classical alpha(2) or alpha omega dynamo.
authors.affiliation: Department of Applied Mathematics, University of Leeds, Leeds LS2 9JT, UK. d.w.hughes@leeds.ac.uk
authors.forename: David W
authors.initials: DW
authors.lastname: Hughes
authors.forename: Michael R E
authors.initials: MR
authors.lastname: Proctor