Results 161 to 170 of about 994 (182)
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Fluid ratcheting by oscillating channel walls with sawteeth
Journal of Fluid Mechanics, 2014AbstractA laboratory experiment shows that fluid can be pumped from one end to another in a narrow channel whose sawtooth walls vibrate transversely opposite to each other. The phenomenon is referred to as ratcheting fluid. Inspired by this, we put forward here a theory describing the rectified steady flow, and the net directional pumping.
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Stabilization of sawteeth in tokamaks by sheared poloidal flows
Physics of Fluids B: Plasma Physics, 1992The resistive internal kink mode in a current profile with a central safety factor q(0)<1 is shown to be stabilized by sheared poloidal flows. The internal kink mode is found to be stabilized when the local gradient in the poloidal rotation frequency ω at the q=1 resonant surface r1 is larger than the local gradient in the shear Alfvén frequency
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1994
The experimental and theoretical investigations of the major global instabilities of tokamak operation (the sawtooth oscillation and the disruption) are briefly reviewed.
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The experimental and theoretical investigations of the major global instabilities of tokamak operation (the sawtooth oscillation and the disruption) are briefly reviewed.
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Nonthermal electrons during sawteeth and disruption instability in tokamaks
Plasma Physics and Controlled Fusion, 2006Bursts of the x-ray and electron cyclotron emission are observed in tokamaks during sawteeth and disruption instability. Analysis of the tangential view x-ray emissivity in the T-10 tokamak has indicated that the bursts are connected with the nonthermal electrons (E RA ∼ 15-150 keV) localized around the magnetic islands.
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Multiple Timescale Calculations of Sawteeth and Other Global Macroscopic Dynamics of Tokamak Plasmas
Computational Science & Discovery, 2012Stephen Jardin +2 more
exaly
Stabilization of Sawteeth by Lower Hybrid Waves in the Alcator C Tokamak
Nuclear Fusion, 1988S Knowlton, M Porkolab
exaly
Poloidal Field Measurements During Sawteeth and Disruptions on MTX
Nuclear Fusion, 1994B W Rice
exaly