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Title: Optimization methods of the net emission computation applied to cylindrical sodium vapor plasma

An optimization method based on a physical analysis of the temperature profile and different terms in the radiative transfer equation is developed to reduce the time computation of the net emission. This method has been applied for the cylindrical discharge in sodium vapor. Numerical results show a relative error of spectral flux density values lower than 5% with an exact solution, whereas the computation time is about 10 orders of magnitude less. This method is followed by a spectral method based on the rearrangement of the lines profile. Results are shown for Lorentzian profile and they demonstrated a relative error lower than 10% with the reference method and gain in computation time about 20 orders of magnitude.
Authors:
; ; ;  [1]
  1. Unité d'Étude des Milieux Ionisés et Réactifs, IPEIM, 5019 route de Kairouan Monastir (Tunisia)
Publication Date:
OSTI Identifier:
22408030
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CALCULATION METHODS; CYLINDRICAL CONFIGURATION; EMISSION; ERRORS; EXACT SOLUTIONS; FLUX DENSITY; OPTIMIZATION; PLASMA; RADIANT HEAT TRANSFER; SODIUM; VAPORS