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Interplay between magnetic shear and triangularity in ion temperature gradient and trapped electron mode dominated plasmas
Published online by Cambridge University Press: 18 January 2023
Abstract
Local gyrokinetic simulations, performed with the GENE code, are used to investigate the interaction between (negative) triangularity $\delta$ and magnetic shear $s$, in both ion temperature gradient and trapped electron mode dominated plasmas. Magnetic shear turns out to influence in a non-trivial way the effect of negative triangularity. Also, $\delta <0$ is found to lead to a reduction of fluxes when $s>1$ but not anymore when shear is reduced. In certain parameter regimes, this effect can be inverted, up to obtaining higher fluxes when $\delta <0$ with respect to its $\delta >0$ counterpart.
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- Copyright © The Author(s), 2023. Published by Cambridge University Press
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