UKAEA Journals

Showing 1 - 2 of 2 Journals Results
2020
UKAEA-CCFE-PR(20)101

A method to quantify the energy transfer among turbulent structures using singular value decomposition (SVD) is presented. We apply the method to numerical turbulence data obtained from a global plasma simulation using the Hasegawa-Wakatani fluid model, in which the Kelvin-Helmholtz instability plays a dominant role. Using the SVD method, …

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The published version of this paper is currently under embargo and will be available on 08/12/2021
2019
UKAEA-CCFE-PR(19)32

The novel technique of dynamical mode decomposition (DMD) is applied to the outputs of a numerical simulation of Kelvin-Helmholtz turbulence in a cylindical plasma, so as to capture and quantify the time evolution of the dominant nonlinear structures. These structures comprise rotationally symmetric deformations together with spiral patterns, which…

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