skip to content
 

Structure formation in magnetised plasmas

Presented by: 
Gunnar Hornig University of Dundee
Date: 
Friday 22nd September 2017 - 14:50 to 15:30
Venue: 
INI Seminar Room 1
Abstract: 
Magnetic fields in high temperature plasmas have a tendency to take on the structure of Beltrami fields, also known as force-free fields. These fields play also an important role in vortex dynamics as they form stationary solutions of the Euler equation. While it is comparatively easy to show that the class of Beltrami fields are minimum energy states under certain constraints, it is much harder to predict to which particular force-free state a given magnetic field will relax to. We review what is known about the various routes of relaxation and present some newer results of simulations which show that the dynamics depends strongly on the existence of turbulence during the relaxation process and the environment in which this turbulent plasma is embedded.
The video for this talk should appear here if JavaScript is enabled.
If it doesn't, something may have gone wrong with our embedded player.
We'll get it fixed as soon as possible.
University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons