Modeling of detachment experiments at DIII-D

被引：29

作者：

Canik, J. M. ^{[1
]}

Briesemeister, A. R. ^{[1
]}

Lasnier, C. J. ^{[2
]}

Leonard, A. W. ^{[3
]}

Lore, J. D. ^{[1
]}

McLean, A. G. ^{[2
]}

Watkins, J. G. ^{[4
]}

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[3] Gen Atom, San Diego, CA 92186 USA

[4] Sandia Natl Labs, Livermore, CA 94550 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2015年 / 463卷

关键词：

DIVERTOR; DENSITY; PLASMAS; FLOWS;

D O I：

10.1016/j.jnucmat.2014.11.077

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Edge fluid-plasma/kinetic-neutral modeling of well-diagnosed DIII-D experiments is performed in order to document in detail how well certain aspects of experimental measurements are reproduced within the model as the transition to detachment is approached. Results indicate, that at high densities near detachment onset, the poloidal temperature profile produced in the simulations agrees well with, that measured in experiment. However, matching the heat flux in the model requires a significant increase in the radiated power compared to what is predicted using standard chemical sputtering rates. These results suggest that the model is adequate to predict the divertor temperature, provided that the discrepancy in radiated power level can be resolved. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：569 / 572

页数：4

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