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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-2609
DTSTART:20120305T180000Z
DURATION:PT1H0M0S
DTSTAMP:20260414T123427Z
LAST-MODIFIED:20120214T165915Z
LOCATION:2241 Chamberlin
SUMMARY:Using liquid metal experiments to test models of MHD turbulenc
 e\, Plasma Physics (Physics/ECE/NE 922) Seminar\, Mark Nornberg\, UW-M
 adison
DESCRIPTION:Experiments using liquid metals to demonstrate MHD instabi
 lities like the generation of magnetic field through a dynamo or magne
 tically induced turbulence through the Magnetorotational Instability p
 rovide a wealth of information on MHD turbulence. Recent measurements 
 of the correlated velocity and magnetic fluctuations on the Madison Dy
 namo Experiment reveal that simple mean-field models\, assuming homoge
 neous and isotropic turbulence\, describe the measured transport of ma
 gnetic field rather well. Turbulence in a rapidly rotating fluid\, lik
 e that of an experiment designed to study the magnetorotational instab
 ility\, has a strong anisotropy however which tends to confine the mot
 ions of the fluid to two-dimensional\, wave-like turbulence. I will pr
 esent some ideas for experiments using a rapidly rotating liquid metal
  to study the effects of magnetic fields on these waves and to test me
 an-field models for describing turbulent transport in these flows.
URL:https://www.physics.wisc.edu/events/?id=2609
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