Investigation of energy transport in DIII-D High-βP EAST-demonstration discharges with the TGLF turbulent and NEO neoclassical transport models

被引：76

作者：

Pan, C. ^{[1
]}

Staebler, G. M. ^{[2
]}

Lao, L. L. ^{[2
]}

Garofalo, A. M. ^{[2
]}

Gong, X. ^{[1
]}

Ren, Q. ^{[1
]}

McClenaghan, J. ^{[3
]}

Li, G. ^{[1
]}

Ding, S. ^{[1
]}

Qian, J. ^{[1
]}

Wan, B. ^{[1
]}

Xu, G. S. ^{[1
]}

Solomon, W. ^{[2
]}

Meneghini, O. ^{[2
]}

Smith, S. P. ^{[2
]}

机构：

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

[2] Gen Atom, POB 85608, San Diego, CA 92168 USA

[3] Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA

来源：

NUCLEAR FUSION | 2017年 / 57卷 / 03期

基金：

中国国家自然科学基金;

关键词：

high-beta(P); energy transport; EXB; Shafranov shif; PLASMA TRANSPORT; CONFINEMENT; SUPPRESSION; SHEAR;

D O I：

10.1088/1741-4326/aa4ff8

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：

Energy transport analyses of the DIII-D high-beta(P) EAST-demonstration discharges have been performed using the TGYRO transport package with the TGLF turbulent and NEO neoclassical transport models under the OMFIT integrated modeling framework. Ion energy transport is shown to be dominated by neoclassical transport and ion temperature profiles predicted by TGYRO agree closely with the experimental measured profiles for these high-beta(P) discharges. Ion energy transport is largely insensitive to reductions in the ExB flow shear stabilization. The Shafranov shift is shown to play a role in the suppression of the ion turbulent energy transport below the neoclassical level. Electron turbulent energy transport is under-predicted by TGLF and a significant shortfall in the electron energy transport over the whole core plasma is found with TGLF predictions for these high-beta(P) discharges. TGYRO can successfully predict the experimental ion and electron temperature profiles by artificially increasing the saturated turbulence level for ETG driven modes used in TGLF.

引用

页数：11

共 12 条

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