Progress in Edge Plasma Transport Modeling on JET

2008 ◽  
Vol 48 (1-3) ◽  
pp. 190-195 ◽  
Author(s):  
W. Fundamenski ◽  
D. P. Coster ◽  
M. Airila ◽  
P. Belo ◽  
X. Bonnin ◽  
...  
Keyword(s):  
Transport Modeling ◽  
Edge Plasma ◽  
Plasma Transport

Issues of TOKAMAK Edge Plasma Transport and Plasma-material Interactions

2015 ◽  
Vol 6 (1-2) ◽  
pp. 86-91
Author(s):  
S. I. Krasheninnikov ◽  
J. Guterl ◽  
W. Lee ◽  
R. D. Smirnov ◽  
E. D. Marenkov ◽  
...  
Keyword(s):  
Edge Plasma ◽  
Plasma Transport ◽  
Tokamak Edge ◽  
Plasma Material Interactions

Transport Modeling of Edge Plasma in an m/n=1/1 Magnetic Island

2008 ◽  
Vol 48 (1-3) ◽  
pp. 106-110 ◽  
Author(s):  
R. Kanno ◽  
M. Nunami ◽  
S. Satake ◽  
H. Takamaru ◽  
M. Okamoto
Keyword(s):  
Transport Modeling ◽  
Edge Plasma ◽  
Magnetic Island

Effect of neutrals on the anomalous edge plasma transport

2020 ◽  
Vol 62 (11) ◽  
pp. 115018
Author(s):  
Yanzeng Zhang ◽  
Sergei I Krasheninnikov
Keyword(s):  
Edge Plasma ◽  
Plasma Transport

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

2008 ◽  
Vol 74 (5) ◽  
pp. 679-717 ◽  
Author(s):  
S. I. KRASHENINNIKOV ◽  
D. A. D'IPPOLITO ◽  
J. R. MYRA
Keyword(s):  
Experimental Data ◽  
Convective Transport ◽  
Edge Plasma ◽  
Plasma Transport ◽  
Curvature Effects ◽  
Field Edge ◽  
Field Lines ◽  
Edge Plasmas ◽  
Non Gaussian ◽  
Main Ideas

AbstractIn 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’. We start with a brief historical survey of experimental data and the main ideas on edge and SOL plasma transport, which finally evolved into the modern paradigm of convective very-intermittent cross-field edge plasma transport. We show that both extensive analytic treatments and numerical simulations demonstrate that plasma blobs with enhanced pressure can be convected coherently towards the wall. The mechanism of convection is related to an effective gravity force (e.g. owing to magnetic curvature effects), which causes plasma polarization and a corresponding E× B convection. The impacts of different effects (e.g. X-point magnetic geometry, plasma collisionality, plasma beta, etc.) on blob dynamics are considered. Theory and simulation predict, both for current tokamaks and for ITER, blob propagation speeds and cross-field sizes to be of the order of a few hundred meters per second and a centimeter, respectively, which are in reasonable agreement with available experimental data. Moreover, the concept of blobs as a fundamental entity of convective transport in the scrape-off layer provides explanations for observed outwards convective transport, intermittency and non-Gaussian statistics in edge plasmas, and enhanced wall recycling in both toroidal and linear machines.

Improving parallel scalability for edge plasma transport simulations with neutral gas species

2012 ◽  
Vol 5 (1) ◽  
pp. 014012 ◽  
Author(s):  
M McCourt ◽  
T D Rognlien ◽  
L C McInnes ◽  
H Zhang
Keyword(s):  
Edge Plasma ◽  
Plasma Transport ◽  
Parallel Scalability ◽  
Neutral Gas
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