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Hydrogen transport in a toroidal plasma using multigroup discrete-ordinates methodology

Journal Article · · Nucl. Technol.; (United States)
OSTI ID:6360223
Neutral hydrogen transport in a fully ionized two-dimensional tokamak plasma was examined using discrete ordinates and contrasted with earlier analyses. In particular, curvature effects induced by toroidal geometries and ray effects caused by possible source localization were investigated. From an overview of the multigroup discrete-ordinates approximation, methodology in two-dimensional cylindrical geometry is detailed, mesh and plasma zoning procedures are sketched, and the piecewise polynomial solution algorithm on a triangular domain is obtained. Toroidal effects and comparisons as related to reaction rates and perticle spectra are examined for various model and source configurations.
Research Organization:
Univ. of California, Los Alamos, NM
OSTI ID:
6360223
Journal Information:
Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 42:3; ISSN NUTYB
Country of Publication:
United States
Language:
English