Observation of Magnetocoriolis Waves in a Liquid Metal Taylor-Couette Experiment

M.D. Nornberg, H. Ji, E. Schartman, A. Roach, and J. Goodman

Princeton University. Plasma Physics Laboratory.

关键词: 70 Plasma Physics And Fusion Technology;    Rotation Mhd , Rotating Plasmas,;    Liquid Metals;    Instability;    Mhd , Rotating Plasmas,;   

RP-ID  :  PPPL-4448
RP-ID  :  DE-ACO2-09CH11466
RP-ID  :  963987

美国|英语

来源: UNT Digital Library

【 摘 要 】

The first observation of fast and slow magnetocoriolis (MC) waves in a laboratory experiment is reported. Rotating nonaxisymmetric modes arising from a magnetized turbulent Taylor-Couette flow of liquid metal are identified as the fast and slow MC waves by the dependence of the rotation frequency on the applied field strength. The observed slow MC wave is marginally damped but will become destabilized by the magnetorotational instability with a modest increase in rotation rate.