Steady-state and time-dependent modelling of parallel transport in the scrape-off layer

被引：16

作者：

Havlickova, E. ^{[1
]}

Fundamenski, W. ^{[1
]}

Naulin, V. ^{[2
]}

Nielsen, A. H. ^{[2
]}

Zagorski, R. ^{[3
]}

Seidl, J. ^{[4
]}

Horacek, J. ^{[4
]}

机构：

[1] EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[2] Assoc EURATOM Riso, Natl Lab Sustainable Energy, OPL 128, DK-4000 Roskilde, Denmark

[3] Assoc EURATOM IPPLM, Inst Plasma Phys & Laser Microfus, Warsaw, Poland

[4] Assoc EURATOM IPP CR, Inst Plasma Phys, Prague, Czech Republic

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2011年 / 53卷 / 06期

关键词：

EDGE; TURBULENCE;

D O I：

10.1088/0741-3335/53/6/065004

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The one-dimensional fluid code SOLF1D has been used for modelling of plasma transport in the scrape-off layer (SOL) along magnetic field lines, both in steady state and under transient conditions that arise due to plasma turbulence. The presented work summarizes results of SOLF1D with attention given to transient parallel transport which reveals two distinct time scales due to the transport mechanisms of convection and diffusion. Time-dependent modelling combined with the effect of ballooning shows propagation of particles along the magnetic field line with Mach number up to M approximate to 1 and supersonic transport when plasma-neutral interactions are not present. Asymmetric heat and particle fluxes are analysed for a case with poloidally asymmetric radial outflow(ballooning) and for a radial outflow with parallel momentum (rotation). In addition, parallel damping of the density and electron temperature calculated in SOLF1D is compared with the approximative model used in the turbulence code ESEL both for steady-state and turbulent SOL. Dynamics of the parallel transport are investigated for a simple transient event simulating the propagation of particles and energy to the targets from a blob passing across the flux tube at the outboard midplane and for more complex time-dependent data provided by ESEL.

引用

页数：24

共 26 条

[1] Edge turbulence and SOL transport in tokamaks [J].

Boedo, J. A. .

JOURNAL OF NUCLEAR MATERIALS, 2009, 390-91 :29-37

[2]

Braginskii S. I., 1965, REV PLASMA PHYS, V1

[3] Benchmarking Tokamak edge modelling codes [J].

Coster, DP ;

Bonnin, X ;

Corrigan, G ;

Kirnev, GS ;

Matthews, G ;

Spence, J .

JOURNAL OF NUCLEAR MATERIALS, 2005, 337 (1-3) :366-370

[4] The European turbulence code benchmarking effort: turbulence driven by thermal gradients in magnetically confined plasmas [J].

Falchetto, G. L. ;

Scott, B. D. ;

Angelino, P. ;

Bottino, A. ;

Dannert, T. ;

Grandgirard, V. ;

Janhunen, S. ;

Jenko, F. ;

Jolliet, S. ;

Kendl, A. ;

McMillan, B. F. ;

Naulin, V. ;

Nielsen, A. H. ;

Ottaviani, M. ;

Peeters, A. G. ;

Pueschel, M. J. ;

Reiser, D. ;

Ribeiro, T. T. ;

Romanelli, M. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2008, 50 (12)

[5] Dissipative processes in interchange driven scrape-off layer turbulence [J].

Fundamenski, W. ;

Garcia, O. E. ;

Naulin, V. ;

Pitts, R. A. ;

Nielsen, A. H. ;

Rasmussen, J. Juul ;

Horacek, J. ;

Graves, J. P. .

NUCLEAR FUSION, 2007, 47 (05) :417-433

[6] Parallel heat flux limits in the tokamak scrape-off layer [J].

Fundamenski, W .

PLASMA PHYSICS AND CONTROLLED FUSION, 2005, 47 (11) :R163-R208

[7] Fluctuations and transport in the TCV scrape-off layer [J].

Garcia, O. E. ;

Horacek, J. ;

Pitts, R. A. ;

Nielsen, A. H. ;

Fundamenski, W. ;

Naulin, V. ;

Rasmussen, J. Juul .

NUCLEAR FUSION, 2007, 47 (07) :667-676

[8] Turbulence and intermittent transport at the boundary of magnetized plasmas [J].

Garcia, OE ;

Naulin, V ;

Nielsen, AH ;

Rasmussen, JJ .

PHYSICS OF PLASMAS, 2005, 12 (06) :1-14

[9] Interchange turbulence in the TCV scrape-off layer [J].

Garcia, OE ;

Horacek, J ;

Pitts, RA ;

Nielsen, AH ;

Fundamenski, W ;

Graves, JP ;

Naulin, V ;

Rasmussen, JJ .

PLASMA PHYSICS AND CONTROLLED FUSION, 2006, 48 (01) :L1-L10

[10] Evidence for a poloidally localized enhancement of radial transport in the scrape-off layer of the Tore Supra tokamak [J].

Gunn, J. P. ;

Boucher, C. ;

Dionne, M. ;

Duran, I. ;

Fuchs, V. ;

Loarer, T. ;

Nanobashvili, I. ;

Panek, R. ;

Pascal, J.-Y. ;

Saint-Laurent, F. ;

Stoeckel, J. ;

Van Rompuy, T. ;

Zagorski, R. ;

Adamek, J. ;

Bucalossi, J. ;

Dejarnac, R. ;

Devynck, P. ;

Hertout, P. ;

Hron, M. ;

Lebrun, G. ;

Moreau, P. ;

Rimini, F. ;

Sarkissian, A. ;

Van Oost, G. .

JOURNAL OF NUCLEAR MATERIALS, 2007, 363 (484-490) :484-490

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