Density peaking and turbulent pinch in DIII-D discharges

被引：18

作者：

Estrada-Mila, C. ^{[1
]}

Candy, J.

Waltz, R. E.

机构：

[1] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA

[2] Gen Atom Co, San Diego, CA 92121 USA

来源：

PHYSICS OF PLASMAS | 2006年 / 13卷 / 07期

关键词：

D O I：

10.1063/1.2241767

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：

A study of density peaking and particle flow in low confinement (L-mode) DIII-D discharges [G. R. McKee, C. C. Petty, R. E. Waltz , Nucl. Fusion 41, 1235 (2001)], using global gyrokinetic simulations, is presented. It is found that under experimental conditions, in particular when realistic collisionality is included, a turbulent pinch driven by electron temperature and density gradients can occur. (c) 2006 American Institute of Physics.

引用

页数：4

共 27 条

[1] Collisionality dependence of density peaking in quasilinear gyrokinetic calculations [J].

Angioni, C ;

Peeters, AG ;

Jenko, F ;

Dannert, T .

PHYSICS OF PLASMAS, 2005, 12 (11) :1-7

[2] Density response to central electron heating: theoretical investigations and experimental observations in ASDEX Upgrade [J].

Angioni, C ;

Peeters, AG ;

Garbet, X ;

Manini, A ;

Ryter, F .

NUCLEAR FUSION, 2004, 44 (08) :827-845

[3] Theory-based modeling of particle transport in ASDEX Upgrade H-mode plasmas, density peaking, anomalous pinch and collisionality [J].

Angioni, C ;

Peeters, AG ;

Pereverzev, GV ;

Ryter, F ;

Tardini, G .

PHYSICS OF PLASMAS, 2003, 10 (08) :3225-3239

[4] A perturbative solution of the drift kinetic equation yields pinch type convective terms in the particle and energy fluxes for strong electrostatic turbulence [J].

Baker, DR .

PHYSICS OF PLASMAS, 2004, 11 (03) :992-996

[5] Density profile consistency and its relation to the transport of trapped versus passing electrons in tokamaks [J].

Baker, DR ;

Rosenbluth, MN .

PHYSICS OF PLASMAS, 1998, 5 (08) :2936-2941

[6] Anomalous transport scaling in the DIII-D tokamak matched by supercomputer simulation [J].

Candy, J ;

Waltz, RE .

PHYSICAL REVIEW LETTERS, 2003, 91 (04)

[7] An Eulerian gyrokinetic-Maxwell solver [J].

Candy, J ;

Waltz, RE .

JOURNAL OF COMPUTATIONAL PHYSICS, 2003, 186 (02) :545-581

[8] ION-MIXING MODE AND MODEL FOR DENSITY RISE IN CONFINED PLASMAS [J].

COPPI, B ;

SPIGHT, C .

PHYSICAL REVIEW LETTERS, 1978, 41 (08) :551-554

[9] Gyrokinetic simulations of ion and impurity transport [J].

Estrada-Mila, C ;

Candy, J ;

Waltz, RE .

PHYSICS OF PLASMAS, 2005, 12 (02) :022305-1

[10]

GARBET X, 2001, PHYS REV LETT, V91

← 1 2 3 →