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Title: Simulation of Power and Particle Flows in the NSTX Edge Plasma

Abstract

We simulate edge plasmas in NSTX double-null divertor configurations with the UEDGE two-dimensional fluid code. The carbon impurity density in the core plasma and total radiated power increase with the core heating power and the magnitude of the physical and chemical sputtering in the divertor. Up/down plasma asymmetries are generated by classical cross-field particle drifts. With the standard toroidal magnetic field direction (ion {del}B drift toward the lower x-point) the highest density occurs at the lower inboard divertor plate and the highest heat flux at the upper outboard divertor plate. Simulations of 3-d edge plasma turbulence with the BOUT code show that anomalous radial transport at the outboard midplane should be similar in magnitude for NSTX and DIII-D.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
794013
Report Number(s):
UCRL-JC-136705-REV-1
Journal ID: ISSN 0022-3115; TRN: US0300664
DOE Contract Number:  
W-7405-Eng-48
Resource Type:
Conference
Resource Relation:
Journal Volume: 290-293; Conference: 14th International Conference on Plasma Surface Interactions, Rosenheim (DE), 05/22/2000--05/26/2000; Other Information: PBD: 18 May 2000
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CARBON; DIVERTORS; HEAT FLUX; HEATING; MAGNETIC FIELDS; PLASMA; PLATES; SIMULATION; SPUTTERING; TRANSPORT; TURBULENCE

Citation Formats

Rensink, M E, Kugel, H, Maingi, R, Paoletti, F, Porter, G D, Rognlien, T D, Sabbagh, S, and Xu, X. Simulation of Power and Particle Flows in the NSTX Edge Plasma. United States: N. p., 2000. Web. doi:10.1016/S0022-3115(00)00449-9.
Rensink, M E, Kugel, H, Maingi, R, Paoletti, F, Porter, G D, Rognlien, T D, Sabbagh, S, & Xu, X. Simulation of Power and Particle Flows in the NSTX Edge Plasma. United States. doi:10.1016/S0022-3115(00)00449-9.
Rensink, M E, Kugel, H, Maingi, R, Paoletti, F, Porter, G D, Rognlien, T D, Sabbagh, S, and Xu, X. Thu . "Simulation of Power and Particle Flows in the NSTX Edge Plasma". United States. doi:10.1016/S0022-3115(00)00449-9. https://www.osti.gov/servlets/purl/794013.
@article{osti_794013,
title = {Simulation of Power and Particle Flows in the NSTX Edge Plasma},
author = {Rensink, M E and Kugel, H and Maingi, R and Paoletti, F and Porter, G D and Rognlien, T D and Sabbagh, S and Xu, X},
abstractNote = {We simulate edge plasmas in NSTX double-null divertor configurations with the UEDGE two-dimensional fluid code. The carbon impurity density in the core plasma and total radiated power increase with the core heating power and the magnitude of the physical and chemical sputtering in the divertor. Up/down plasma asymmetries are generated by classical cross-field particle drifts. With the standard toroidal magnetic field direction (ion {del}B drift toward the lower x-point) the highest density occurs at the lower inboard divertor plate and the highest heat flux at the upper outboard divertor plate. Simulations of 3-d edge plasma turbulence with the BOUT code show that anomalous radial transport at the outboard midplane should be similar in magnitude for NSTX and DIII-D.},
doi = {10.1016/S0022-3115(00)00449-9},
journal = {},
issn = {0022-3115},
number = ,
volume = 290-293,
place = {United States},
year = {2000},
month = {5}
}

Conference:
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