Excitation Mechanism of Low- Edge Harmonic Oscillations in Edge Localized Mode-Free, High Performance, Tokamak Plasmas
D Brunetti, JP Graves, E Lazzaro, A Mariani, S Nowak… - Physical review …, 2019 - APS
The excitation mechanism for low-n edge harmonic oscillations in quiescent H-mode
regimes is identified analytically. We show that the combined effect of diamagnetic and …
regimes is identified analytically. We show that the combined effect of diamagnetic and …
Analytic stability criteria for edge MHD oscillations in high performance ELM free tokamak regimes
D Brunetti, JP Graves, E Lazzaro, A Mariani… - Nuclear …, 2017 - iopscience.iop.org
A new dispersion relation, and associated stability criteria, is derived for low-n external kink
and infernal modes, and is applied to modelling the stability properties of quiescent H-mode …
and infernal modes, and is applied to modelling the stability properties of quiescent H-mode …
Analytic study on low-external ideal infernal modes in tokamaks with large edge pressure gradients
D Brunetti, JP Graves, E Lazzaro, A Mariani… - Journal of Plasma …, 2018 - cambridge.org
The problem of pressure driven infernal type perturbations near the plasma edge is
addressed analytically for a circular limited tokamak configuration which presents an edge …
addressed analytically for a circular limited tokamak configuration which presents an edge …
Current and pressure gradient triggering and nonlinear saturation of low-n edge harmonic oscillations in tokamaks
Non-axisymmetric free-boundary equilibrium computations are shown to represent
nonlinearly saturated external kink modes and external kink-like sidebands coupled to …
nonlinearly saturated external kink modes and external kink-like sidebands coupled to …
Free boundary 3D ideal MHD equilibrium calculations for non-linearly saturated current driven external kink modes in tokamaks
It is shown that free boundary 3D equilibrium calculations in tokamak geometry are capable
of capturing the physics of non-linearly saturated external kink modes for monotonic current …
of capturing the physics of non-linearly saturated external kink modes for monotonic current …
MHD simulations of formation, sustainment and loss of quiescent H-mode in the all-tungsten ASDEX Upgrade
Periodic edge localized modes (ELMs) are the non-linear consequences of pressure-
gradient-driven ballooning modes and current-driven peeling modes becoming unstable in …
gradient-driven ballooning modes and current-driven peeling modes becoming unstable in …
Helical equilibrium magnetohydrodynamic flow effects on the stability properties of low-n ideal external-infernal modes in weak shear tokamak configurations
D Brunetti, JP Graves, E Lazzaro… - Plasma Physics and …, 2019 - iopscience.iop.org
The impact of equilibrium helical flows on the stability properties of low shear tokamak
plasmas is assessed. The corrections due to such helical flow to the equilibrium profiles …
plasmas is assessed. The corrections due to such helical flow to the equilibrium profiles …
[PDF][PDF] Preprint of Paper to be submitted for publication in Nuclear Fusion Letter
A Kleiner - scipub.euro-fusion.org
It is shown that free boundary 3D equilibrium calculations in tokamak geometry are capable
of capturing the physics of non-linearly saturated external kink modes for monotonic current …
of capturing the physics of non-linearly saturated external kink modes for monotonic current …
[PDF][PDF] IFP
D Brunetti, JP Graves, E Lazzaro, A Mariani, S Nowak… - astro.auth.gr
Analytic characterisation of ideal infernal type instabilities in tokamaks with large edge pressure
gradients Page 1 IFP Analytic characterisation of ideal infernal type instabilities in tokamaks …
gradients Page 1 IFP Analytic characterisation of ideal infernal type instabilities in tokamaks …