# Nonlinear reconnecting edge localized modes in current-carrying plasmas

@article{Ebrahimi2017NonlinearRE, title={Nonlinear reconnecting edge localized modes in current-carrying plasmas}, author={Fatima Ebrahimi}, journal={Physics of Plasmas}, year={2017}, volume={24}, pages={056119} }

Nonlinear edge localized modes in a tokamak are examined using global three-dimensional resistive magnetohydrodynamics simulations. Coherent current-carrying filament (ribbon-like) structures wrapped around the torus are nonlinearly formed due to nonaxisymmetric reconnecting current sheet instabilities, the so-called peeling-like edge localized modes. These fast growing modes saturate by breaking axisymmetric current layers isolated near the plasma edge and go through repetitive relaxation…

## 17 Citations

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We present test-particle simulations of electrons during a nonlinear MHD simulation of a type-I edge localized mode (ELM) to explore the effect of an eruptive plasma ﬁlament on the kinetic level. The…

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- PhysicsNuclear Fusion
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### Direct Observation of Nonlinear Coupling between Pedestal Modes Leading to the Onset of Edge Localized Modes.

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The results suggest that nonlinear coupling of pedestal modes, associated with radial distortions pushing out of the pedestal, is a possible mechanism for the triggering of low frequency ELMs relevant for future fusion devices.

### Dynamics of filaments during the edge-localized mode crash on NSTX

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- 2021

Edge localized modes (ELMs) are routinely observed in H-mode plasma regimes of the National Spherical Torus Experiment (NSTX). Due to the explosive nature of the instability, only diagnostics with…

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Whole device, resistive MHD simulations of spheromaks and tokamaks have used a large diffusion coefficient that maintains a nearly constant density throughout the device. In the present work,…

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