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Title: Gyrokinetic particle simulation of neoclassical transport in the pedestal/scrape-off region of a tokamak plasma

Abstract

A gyrokinetic neoclassical solution for a diverted tokamak edge plasma has been obtained for the first time using the massively parallel Jaguar XT3 computer at Oak Ridge National Laboratory. The solutions show similar characteristics to the experimental observations: electric potential is positive in the scrape-off layer and negative in the H-mode layer, and the parallel rotation is positive in the scrape-off layer and at the inside boundary of the H-mode layer. However, the solution also makes a new physical discovery that there is a strong ExB convective flow in the scrape-off plasma. A general introduction to the edge simulation problem is also presented.

Authors:
 [1];  [2];  [3];  [4];  [1];  [5];  [2];  [6];  [7];  [8];  [9]
  1. Columbia University
  2. New York University
  3. California Institute of Technology, University of California, Davis
  4. Hinton Associates
  5. ORNL
  6. Princeton Plasma Physics Laboratory (PPPL)
  7. University of California, Irvine
  8. University of Colorado, Boulder
  9. SciDAC Prototype FSP Center for Plasma Edge Simulation
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
931867
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: SciDAC 2006, Denver, CO, USA, 20060625, 20060629
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TOKAMAK DEVICES; PLASMA SCRAPE-OFF LAYER; NEOCLASSICAL TRANSPORT THEORY; H-MODE PLASMA CONFINEMENT; COMPUTERIZED SIMULATION; EDGE LOCALIZED MODES

Citation Formats

Adams, Mark, Chang, C. S., Cummings, J., Hinton, F., Keyes, David E, Klasky, Scott A, Ku, S., Lee, W. W., Lin, Z., Parker, Scott, and CPES Team, the. Gyrokinetic particle simulation of neoclassical transport in the pedestal/scrape-off region of a tokamak plasma. United States: N. p., 2006. Web.
Adams, Mark, Chang, C. S., Cummings, J., Hinton, F., Keyes, David E, Klasky, Scott A, Ku, S., Lee, W. W., Lin, Z., Parker, Scott, & CPES Team, the. Gyrokinetic particle simulation of neoclassical transport in the pedestal/scrape-off region of a tokamak plasma. United States.
Adams, Mark, Chang, C. S., Cummings, J., Hinton, F., Keyes, David E, Klasky, Scott A, Ku, S., Lee, W. W., Lin, Z., Parker, Scott, and CPES Team, the. Sun . "Gyrokinetic particle simulation of neoclassical transport in the pedestal/scrape-off region of a tokamak plasma". United States. doi:.
@article{osti_931867,
title = {Gyrokinetic particle simulation of neoclassical transport in the pedestal/scrape-off region of a tokamak plasma},
author = {Adams, Mark and Chang, C. S. and Cummings, J. and Hinton, F. and Keyes, David E and Klasky, Scott A and Ku, S. and Lee, W. W. and Lin, Z. and Parker, Scott and CPES Team, the},
abstractNote = {A gyrokinetic neoclassical solution for a diverted tokamak edge plasma has been obtained for the first time using the massively parallel Jaguar XT3 computer at Oak Ridge National Laboratory. The solutions show similar characteristics to the experimental observations: electric potential is positive in the scrape-off layer and negative in the H-mode layer, and the parallel rotation is positive in the scrape-off layer and at the inside boundary of the H-mode layer. However, the solution also makes a new physical discovery that there is a strong ExB convective flow in the scrape-off plasma. A general introduction to the edge simulation problem is also presented.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}

Conference:
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