Blob structure and motion in the edge and SOL of NSTX

SJ Zweben, JR Myra, WM Davis… - Plasma Physics and …, 2016 - iopscience.iop.org
The structure and motion of discrete plasma blobs (aka filaments) in the edge and scrape-off
layer of NSTX is studied for representative Ohmic and H-mode discharges. Individual blobs …

Global turbulence simulations of the tokamak edge region with GRILLIX

A Stegmeir, A Ross, T Body, M Francisquez… - Physics of …, 2019 - pubs.aip.org
Turbulent dynamics in the scrape-off layer of magnetic fusion devices is intermittent with
large fluctuations in density and pressure. Therefore, a model is required that allows …

Theory-based scaling laws of near and far scrape-off layer widths in single-null L-mode discharges

M Giacomin, A Stagni, P Ricci, JA Boedo… - Nuclear …, 2021 - iopscience.iop.org
Abstract Theory-based scaling laws of the near and far scrape-off layer (SOL) widths are
analytically derived for L-mode diverted tokamak discharges by using a two-fluid model. The …

The influence of temperature dynamics and dynamic finite ion Larmor radius effects on seeded high amplitude plasma blobs

M Held, M Wiesenberger, J Madsen, A Kendl - Nuclear Fusion, 2016 - iopscience.iop.org
Thermal effects on the perpendicular convection of seeded pressure blobs in the scrape-off
layer of magnetised fusion plasmas are investigated. Our numerical study is based on a four …

Fluctuation statistics in the scrape-off layer of Alcator C-Mod

R Kube, A Theodorsen, OE Garcia… - Plasma Physics and …, 2016 - iopscience.iop.org
We study long time series of the ion saturation current and floating potential, sampled by
Langmuir probes dwelled in the outboard mid-plane scrape-off layer and embedded in the …

On the nature of blob propagation and generation in the large plasma device: Global GRILLIX studies

A Ross, A Stegmeir, P Manz, D Groselj… - Physics of …, 2019 - pubs.aip.org
The appearance of blobs, filamentary structures featuring large intermittent perturbations, is
characteristic for the scrape-off layer of magnetic fusion devices. Therefore, a global model …

The effects of shape and amplitude on the velocity of scrape-off layer filaments

JT Omotani, F Militello, L Easy… - Plasma Physics and …, 2015 - iopscience.iop.org
A complete model of the dynamics of scrape-off layer filaments will be rather complex,
including temperature evolution, three dimensional geometry and finite Larmor radius …

Dynamics of scrape-off layer filaments in high β plasmas

T Hoare, F Militello, JT Omotani, F Riva… - Plasma Physics and …, 2019 - iopscience.iop.org
The role of magnetic perturbations generated by filaments in the scrape-off layer is
investigated by performing simulations of 3D seeded filaments with an electromagnetic …

On the interaction of scrape off layer filaments

F Militello, B Dudson, L Easy, A Kirk… - Plasma Physics and …, 2017 - iopscience.iop.org
The interaction of L-mode and inter-ELM scrape-off layer (SOL) filaments is investigated by
simulating the dynamics of two seeded density perturbations with different initial separation …

[HTML][HTML] Electromagnetic effects on dynamics of high-beta filamentary structures

W Lee, MV Umansky, JR Angus… - Physics of Plasmas, 2015 - pubs.aip.org
The impacts of the electromagnetic effects on blob dynamics are considered.
Electromagnetic BOUT++ simulations on seeded high-beta blobs demonstrate that …