Pinch dynamics in a low-β plasma

@article{Moffatt2017PinchDI,
  title={Pinch dynamics in a low-$\beta$ plasma},
  author={H. K. Moffatt and Krzysztof A. Mizerski},
  journal={Fluid Dynamics Research},
  year={2017},
  volume={50}
}
The relaxation of a helical magnetic field B ( x , t ) in a high-conductivity plasma contained in the annulus between two perfectly conducting coaxial cylinders is considered. The plasma is of low density and its pressure is negligible compared with the magnetic pressure; the flow of the plasma is driven by the Lorentz force and energy is dissipated primarily by the viscosity of the medium. The axial and toroidal fluxes of magnetic field are conserved in the perfect-conductivity limit, as is… 
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