[HTML][HTML] Convective transport by intermittent blob-filaments: Comparison of theory and experiment

DA D'ippolito, JR Myra, SJ Zweben - Physics of Plasmas, 2011 - pubs.aip.org
A blob-filament (or simply “blob”) is a magnetic-field-aligned plasma structure which is
considerably denser than the surrounding background plasma and highly localized in the …

Recent theoretical progress in understanding coherent structures in edge and SOL turbulence

SI Krasheninnikov, DA D'ippolito… - Journal of Plasma …, 2008 - cambridge.org
In this paper we review some theoretical aspects of the dynamics of the mesoscale filaments
extending along the magnetic field lines in the edge plasma, which are often called 'blobs' …

Theory of plasma blob formation and its numerical and experimental validations

N Bisai, A Sen - Reviews of Modern Plasma Physics, 2023 - Springer
Plasma 'blobs', which are localized enhanced density structures, have been widely
observed in the turbulent edge and scrape-off layer (SOL) of several tokamaks. They are …

Collisionality and magnetic geometry effects on tokamak edge turbulent transport. I. A two-region model with application to blobs

JR Myra, DA Russell, DA d'Ippolito - Physics of plasmas, 2006 - pubs.aip.org
A two-region model is proposed to study the effect of collisionality and magnetic geometry
on electrostatic turbulence and on the propagation of filamentary coherent structures (blobs) …

Blob/hole formation and zonal-flow generation in the edge plasma of the JET tokamak

GS Xu, V Naulin, W Fundamenski, C Hidalgo… - Nuclear …, 2009 - iopscience.iop.org
The first experimental evidence showing the connection between blob/hole formation and
zonal-flow generation was obtained in the edge plasma of the JET tokamak. Holes as well …

Blob birth and transport in the tokamak edge plasma: Analysis of imaging data

JR Myra, DA D'Ippolito, DP Stotler, SJ Zweben… - Physics of …, 2006 - pubs.aip.org
High-speed high-spatial-resolution data obtained by the gas puff imaging (GPI) diagnostic
on the National Spherical Torus Experiment [M. Ono, MG Bell, RE Bell et al Plasma Phys …

Generation of blobs and holes in the edge of the ASDEX Upgrade tokamak

B Nold, GD Conway, T Happel, HW Müller… - Plasma Physics and …, 2010 - iopscience.iop.org
The intermittent character of turbulent transport is investigated with Langmuir probes in the
scrape-off layer and across the separatrix of ASDEX Upgrade Ohmic discharges. Radial …

Origin and turbulence spreading of plasma blobs

P Manz, TT Ribeiro, BD Scott, G Birkenmeier… - Physics of …, 2015 - pubs.aip.org
The formation of plasma blobs is studied by analyzing their trajectories in a gyrofluid
simulation in the vicinity of the separatrix. Most blobs arise at the maximum radial electric …

Edge sheared flows and the dynamics of blob-filaments

JR Myra, WM Davis, DA D'Ippolito, B LaBombard… - Nuclear …, 2013 - iopscience.iop.org
The edge and scrape-off layer (SOL) region of a tokamak plasma is considered, with
emphasis on sheared flow generation and the dynamics of blob-filaments. Both numerical …

Saturation mechanisms for edge turbulence

DA Russell, JR Myra, DA D'Ippolito - Physics of Plasmas, 2009 - pubs.aip.org
Saturation mechanisms for two-dimensional (2D) edge turbulence are studied in a
Braginskii-type fluid model using the scrape-off-layer turbulence code. The simulations study …