Magnetorotational Instability in a Couette Flow of Plasma

Details Magnetorotational Instability in a Couette Flow of Plasma Magnetorotational Instability in a Couette Flow of Plasma

2003-09-11

arxiv.org/abs/astro-ph/0309340v1

AIP Conf.Proc.692:285-292,2004

Astronomy and Astrophysics

Astrophysics

6 pages, 2 figures; to be published in the Proceedings of the 3d Workshop on Non-Neutral Plasmas, July 2003, Santa Fe, USA

Scientific paper

10.1063/1.1635188

All experiments, which have been proposed so far to model the magnetorotational instability (MRI) in the laboratory, involve a Couette flow of liquid metals in a rotating annulus. All liquid metals have small magnetic Prandtl numbers, Pm, of about 10^{-6} (the ratio of kinematic viscosity to magnetic diffusivity). With plasmas both large and small Pm are achievable by varying the temperature and the density of plasma. Compressibility and fast rotation of the plasma result in radial stratification of the equilibrium plasma density. Evolution of perturbations in radially stratified viscous and resistive plasma permeated by an axial uniform magnetic field is considered. The differential rotation of the plasma is induced by the ExB drift in applied radial electric field. Global unstable eigenmodes are calculated by our newly developed matrix code. The plasma is shown to be MRI unstable for parameters easily achievable in experimental setup.

Affiliated with

Also associated with

No associations

Rating

Magnetorotational Instability in a Couette Flow of Plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Magnetorotational Instability in a Couette Flow of Plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetorotational Instability in a Couette Flow of Plasma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-229924