Physics – Plasma Physics
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..dppkm1001l&link_type=abstract
American Physical Society, 45th Annual Meeting of the Division of Plasma Physics, October 27-31, 2003, Albuquerque, New Mexico,
Physics
Plasma Physics
Scientific paper
The motion of conducting fluids, where the effects of inertia and Lorentz forces are relevant, is key to understanding a variety of astrophysical and planetary flows. How the Lorentz forces modify turbulent flows is an important aspect of the understanding of dynamo self-generation. We characterize the states observed in spherical Couette flow (flow between concentric spheres) of liquid Sodium in the presence of magnetic fields. We observe a large number of distinct states as the influence of Lorentz forces is increased. These transitions proceed from a magnetic field free state which shows intense turbulence. The states are characterized by measurements of the Gauss coefficients of the external magnetic field. The competing effects of inertia and Lorentz forces are also examined using measurements of the total dissipation (via the applied torque).
Lathrop Daniel P.
Sisan Daniel R.
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