Other
Scientific paper
Nov 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..733..100s&link_type=abstract
MHD COUETTE FLOWS: Experiments and Models. AIP Conference Proceedings, Volume 733, pp. 100-113 (2004).
Other
2
Magnetohydrodynamics And Plasmas, Laminar Flows, Flow Instabilities, Vortex Dynamics, Rotating Fluids
Scientific paper
The magnetorotational instability (MRI) can destabilize hydrodynamically stable flows which are characterized by an angular momentum that is increasing with the radius and by an angular velocity that is decreasing with radius. Its astrophysical importance comes from the fact that the Kepler flow with Ω(r) ~ r-3/2 exactly such a behaviour. In order to investigate MRI in a laboratory experiment, the Taylor-Couette flow with Ω(r) = A + Br2 with A > 0 has been proposed as a substitute for the Kepler flow. In this paper we consider the Taylor-Dean flow as another example of a flow profile which can exhibit the necessary radial dependence. Taylor-Dean flows are a combination of the traditional Taylor-Couette flow with an additional flow that is produced by an azimuthal force. Special focus is laid on the case that the Taylor-Couette part of the flow is a rigid body rotation and the magnitude of the Dean flow is adjusted in such a way that in the outer part of the flow the conditions for MRI are fulfilled. Based on the dispersion relation derived by Ji, Kageyama and Goodman, in combination with some preliminary global instability analysis, we give some first estimates for the physical parameters of a Taylor-Dean MRI experiment with liquid sodium.
Gerbeth Gunter
Stefani Frank
No associations
LandOfFree
MRI in Taylor-Dean flows 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 MRI in Taylor-Dean flows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MRI in Taylor-Dean flows will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1008642