Large-scale intermittency of liquid-metal channel flow in a magnetic field

Details Large-scale intermittency of liquid-metal channel flow in a magnetic field Large-scale intermittency of liquid-metal channel flow in a magnetic field

2008-11-06

arxiv.org/abs/0811.0912v1

Phys. Rev. Lett. 101, 244501 (2008)

Physics

Fluid Dynamics

10 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.101.244501

We predict a novel flow regime in liquid metals under the influence of a magnetic field. It is characterised by long periods of nearly steady, two-dimensional flow interrupted by violent three-dimensional bursts. Our prediction has been obtained from direct numerical simulations in a channel geometry at low magnetic Reynolds number and translates into physical parameters which are amenable to experimental verification under laboratory conditions. The new regime occurs in a wide range of parameters and may have implications for metallurgical applications.

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