Techniques and results of tokamak-edge simulation

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Description

This paper describes recent development of the UEDGE code in three important areas. (1) Non-orthogonal grids allow accurate treatment of experimental geometries in which divertor plates intersect flux surfaces at oblique angles. (2) Radating impurities are included by means of one or more continuity equations that describe transport and sources, and sinks due to ionization and recombination processes. (3) Advanced iterative methods that reduce storage and execution time allow us to find fully converged solutions of larger problems (i.e., finer grids). Sample calculations are presented to illustrate these development.

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13 p.

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Smith, G.R.; Brown, P.N.; Rensink, M.E.; Rognlien, T.D.; Campbell, R.B.; Knoll, D.A. et al. May 20, 1994.

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Description

This paper describes recent development of the UEDGE code in three important areas. (1) Non-orthogonal grids allow accurate treatment of experimental geometries in which divertor plates intersect flux surfaces at oblique angles. (2) Radating impurities are included by means of one or more continuity equations that describe transport and sources, and sinks due to ionization and recombination processes. (3) Advanced iterative methods that reduce storage and execution time allow us to find fully converged solutions of larger problems (i.e., finer grids). Sample calculations are presented to illustrate these development.

Physical Description

13 p.

Notes

INIS; OSTI as DE95008075

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  • 11. international conference on plasma surface interactions in controlled fusion devices, Mito (Japan), 23-27 May 1994

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  • Other: DE95008075
  • Report No.: UCRL-JC--115909
  • Report No.: CONF-940580--24
  • Office of Scientific & Technical Information Report Number: 34228
  • Archival Resource Key: ark:/67531/metadc686267

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  • May 20, 1994

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 17, 2016, 7:13 p.m.

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Smith, G.R.; Brown, P.N.; Rensink, M.E.; Rognlien, T.D.; Campbell, R.B.; Knoll, D.A. et al. Techniques and results of tokamak-edge simulation, article, May 20, 1994; California. (digital.library.unt.edu/ark:/67531/metadc686267/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.