Influence of the E X B drift in high recycling divertors on target asymmetries

被引：72

作者：

Chankin, A. V. ^{[1
]}

Corrigan, G. ^{[2
,7
]}

Groth, M. ^{[3
,5
]}

Stangeby, P. C. ^{[4
]}

Abhangi, M. ^{[38
]}

Abreu, P. ^{[44
]}

Aftanas, M. ^{[41
]}

Afzal, M. ^{[7
]}

Aggarwal, K. M. ^{[24
]}

Aho-Mantila, L. ^{[98
]}

Ahonen, E. ^{[5
]}

Aints, M. ^{[94
]}

Airila, M. ^{[98
]}

Albanese, R. ^{[92
]}

Alegre, D. ^{[50
]}

Alessi, E. ^{[37
]}

Aleynikov, P. ^{[46
]}

Alfier, A. ^{[11
]}

Alkseev, A. ^{[59
]}

Allan, P. ^{[7
]}

Almaviva, S. ^{[83
]}

Alonso, A. ^{[50
]}

Alper, B. ^{[7
]}

Alsworth, I. ^{[7
]}

Alves, D. ^{[44
]}

Ambrosino, G. ^{[92
]}

Ambrosino, R. ^{[93
]}

Amosov, V. ^{[76
]}

Andersson, F. ^{[15
]}

Andersson Sunden, E. ^{[19
]}

Angelone, M. ^{[78
]}

Anghel, A. ^{[73
]}

Anghel, M. ^{[72
]}

Angioni, C. ^{[53
]}

Appel, L. ^{[7
]}

Apruzzese, G. ^{[78
]}

Arena, P. ^{[25
]}

Ariola, M. ^{[93
]}

Arnichand, H. ^{[8
]}

Arnoux, G. ^{[7
]}

Arshad, S. ^{[34
]}

Ash, A. ^{[7
]}

Asp, E. ^{[19
]}

Asunta, O. ^{[5
]}

Atanasiu, C. V. ^{[73
]}

Austin, Y. ^{[7
]}

Avotina, L. ^{[91
]}

Axton, M. D. ^{[7
]}

Ayres, C. ^{[7
]}

Bachmann, C. ^{[29
]}

机构：

[1] Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany

[2] Culham Ctr Fus Energy, Abingdon, Oxon, England

[3] Aalto Univ, Espoo, Finland

[4] Univ Toronto, Inst Aerosp Studies, Toronto, ON, Canada

[5] Aalto Univ, FIN-00076 Aalto, Finland

[6] BCS, Barcelona, Spain

[7] Culham Sci Ctr, CCFE, Abingdon OX14 3DB, Oxon, England

[8] IRFM, CEA, F-13108 St Paul Les Durance, France

[9] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil

[10] Consorzio CREATE, I-80125 Naples, Italy

[11] Consorzio RFX, I-35127 Padua, Italy

[12] Daegu Univ, Gyongsan 712174, Gyeongbuk, South Korea

[13] Univ Carlos III Madrid, Dept Fis, Madrid 28911, Spain

[14] Univ Ghent, Dept Appl Phys, B-9000 Ghent, Belgium

[15] Chalmers Univ Technol, Dept Earth & Space Sci, SE-41296 Gothenburg, Sweden

[16] Univ Cagliari, Dept Elect & Elect Engn, I-09123 Cagliari, Italy

[17] Comenius Univ, Fac Math Phys & Informat, Dept Expt Phys, Bratislava 84248, Slovakia

[18] Univ Strathclyde, Dept Phys & Appl Phys, Glasgow G4 ONG, Lanark, Scotland

[19] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden

[20] Lund Univ, Dept Phys, SE-22100 Lund, Sweden

[21] KTH, SCI, Dept Phys, SE-10691 Stockholm, Sweden

[22] Univ Oxford, Dept Phys, Oxford OX1 2JD, England

[23] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[24] Queens Univ, Dept Pure & Appl Phys, Belfast BT7 1NN, Antrim, North Ireland

[25] Univ Catania, Dipartimento Ingn Elettr Elettr & Sistemi, I-95125 Catania, Italy

[26] Dublin City Univ, Dublin, Ireland

[27] CRPP, EPFL, CH-1015 Lausanne, Switzerland

[28] CNRS, UMR 7648, Ecole Polytech, F-91128 Palaiseau, France

[29] EUROfus Programme Management Unit, D-85748 Garching, Germany

[30] Culham Sci Ctr, EUROfus Programme Management Unit, Abingdon OX14 3DB, Oxon, England

[31] European Commiss, B-1049 Brussels, Belgium

[32] FOM Inst DIFFER, NL-3430 BE Nieuwegein, Netherlands

[33] Forsch Zentrum Julich GmbH, Inst Energie & Klimaforsch Plasmaphys, D-52425 Julich, Germany

[34] Fus Energy Joint Undertaking, Barcelona 08019, Spain

[35] KTH, EES, Fus Plasma Phys, SE-10044 Stockholm, Sweden

[36] Gen Atom, San Diego, CA 85608 USA

[37] IFP CNR, I-20125 Milan, Italy

[38] Inst Plasma Res, Gandhinagar 382428G, Gujarat, India

[39] Bulgarian Acad Sci, Inst Elect, BU-1784 Sofia, Bulgaria

[40] Inst Plasma Phys & Laser Microfus, PL-01497 Warsaw, Poland

[41] Inst Plasma Phys AS CR, Prague 182 00 8, Czech Republic

[42] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

[43] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, Brazil

[44] Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, Lisbon, Portugal

[45] Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[46] ITER Org, F-13067 St Paul Les Durance, France

[47] Naka Fus Res Estab, Japan Atom Energy Agcy, Naka 3110913, Ibaraki, Japan

[48] Karlsruhe Inst Technol, D-76021 Karlsruhe, Germany

[49] Univ Nice Sophia Antipolis, Lab JA Dieudonne, F-06108 Nice 2, France

[50] CIEMAT, Lab Nacl Fus, Madrid, Spain

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2015年 / 57卷 / 09期

关键词：

divertor; drift; recycling; SCRAPE-OFF LAYER; ELECTRIC-FIELD; MODELS; EQUATIONS; PARTICLE; EDGE2D; PLASMA;

D O I：

10.1088/0741-3335/57/9/095002

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：

Detailed analysis of convective fluxes caused by E x B drifts is carried out in a realistic JET configuration, based on a series of EDGE2D-EIRENE runs. The EDGE2D-EIRENE code includes all guiding centre drifts, E x B as well as. B and centrifugal drifts. Particle sources created by divergences of radial and poloidal components of the E x B drift are separately calculated for each flux tube in the divertor. It is demonstrated that in high recycling divertor conditions radial E x B drift creates particle sources in the common flux region (CFR) consistent with experimentally measured divertor and target asymmetries, with the poloidal E x B drift creating sources of an opposite sign but smaller in absolute value. That is, the experimentally observed asymmetries in the CFR are the opposite to what poloidal E x B drift by itself would cause. In the private flux region (PFR), the situation is reversed, with poloidal E x B drift being dominant. In this region poloidal E x B drift by itself contributes to experimentally observed asymmetries. Thus, in each region, the dominant component of the E x B drift acts so as to create the density (and hence, also temperature) asymmetries that are observed both in experiment and in 2D edge fluid codes. Since the total number of charged particles is much greater in the CFR than in PFR, divertor asymmetries caused by the E x B drift should be attributed primarily to particle sources in the CFR caused by radial E x B drift.

引用

页数：11

共 25 条

[1] Outer divertor of ASDEX Upgrade in low-density L-mode discharges in forward and reversed magnetic field: I. Comparison between measured plasma conditions and SOLPS5.0 code calculations [J].

Aho-Mantila, L. ;

Wischmeier, M. ;

Mueller, H. W. ;

Potzel, S. ;

Coster, D. P. ;

Bonnin, X. ;

Conway, G. D. .

NUCLEAR FUSION, 2012, 52 (10)

[2]

Aho-Mantila L, 2014, 41 EPS C CONTR FUS F, V38F

[3]

[Anonymous], 2000, The Boundary of Magnetic Fusion Devices

[4] Electric field-induced plasma convection in tokamak divertors [J].

Boedo, JA ;

Schaffer, MJ ;

Maingi, R ;

Lasnier, CJ .

PHYSICS OF PLASMAS, 2000, 7 (04) :1075-1078

[5] Particle and parallel momentum balance equations with inclusion of drifts, for modelling strong- to weakly-collisional edge plasmas [J].

Chankin, A. V. ;

Stangeby, P. C. .

NUCLEAR FUSION, 2006, 46 (12) :975-993

[6]

Chankin A V, 2003, 30 EPS C CONTR FUS A, V27A

[7] Classical drifts in the tokamak SOL and divertor: Models and experiment [J].

Chankin, AV .

JOURNAL OF NUCLEAR MATERIALS, 1997, 241 :199-213

[8]

Cohen R. H., 1995, Comments on Plasma Physics and Controlled Fusion, V16, P255

[9]

Groth M, 2014, 21 C PLASM SURF INT

[10] Nonlinear gyrokinetic theory of toroidal momentum pinch [J].

Hahm, T. S. ;

Diamond, P. H. ;

Gurcan, O. D. ;

Rewoldt, G. .

PHYSICS OF PLASMAS, 2007, 14 (07)

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