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COMPARISON OF MONTE CARLO METHODS FOR NONLINEAR RADIATION TRANSPORT [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2001.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
274 Kilobytes pages : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Five Monte Carlo methods for solving the nonlinear thermal radiation transport equations are compared. The methods include the well-known Implicit Monte Carlo method (IMC) developed by Fleck and Cummings, an alternative to IMC developed by Carter and Forest, an ''exact'' method recently developed by Ahrens and Larsen, and two methods recently proposed by Martin and Brown. The five Monte Carlo methods are developed and applied to the radiation transport equation in a medium assuming local thermodynamic equilibrium. Conservation of energy is derived and used to define appropriate material energy update equations for each of the methods. Details of the Monte Carlo implementation are presented, both for the random walk simulation and the material energy update. Simulation results for all five methods are obtained for two infinite medium test problems and a 1-D test problem, all of which have analytical solutions. Conclusions regarding the relative merits of the various schemes are presented.
Report Numbers
E 1.99:la-ur-01-1728
la-ur-01-1728
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
03/01/2001.
"la-ur-01-1728"
Conference title not supplied, Conference location not supplied, Conference dates not supplied.
W. R. MARTIN; F. B. BROWN.
Funding Information
W-7405-ENG-36
View MARC record | catkey: 13822536