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The zero-turbulence manifold in fusion plasmas

Abstract:

The transport of heat that results from turbulence is a major factor limiting the temperature gradient, and thus the performance, of fusion devices. We use nonlinear simulations to show that a toroidal equilibrium scale sheared flow can completely suppress the turbulence across a wide range of flow gradient and temperature gradient values. We demonstrate the existence of a bifurcation across this range whereby the plasma may transition from a low flow gradient and temperature gradient state t...

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Institution:
University of Oxford
Research group:
Astrophysics & Plasma Physics
Oxford college:
Magdalen College
Department:
Mathematical,Physical & Life Sciences Division - Physics - Theoretical Physics
Role:
Author

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Publication date:
2012
Type of award:
DPhil
Level of award:
Doctoral
Awarding institution:
Oxford University, UK
URN:
uuid:7ed1774d-88a5-4764-ba06-1de00c348d26
Local pid:
ora:6637

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