Diffusion-accelerated solution of the two-dimensional S[sub n] equations with bilinear-discontinuous differencing

Journal Article · Wed Dec 01 00:00:00 EST 1993 · Nuclear Science and Engineering; (United States)

OSTI ID:5338603

Morel, J E; Dendy, Jr, J E; Wareing, T A ^[1]

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1. Los Alamos National Lab., NM (United States)

A new diffusion synthetic acceleration scheme is developed for solving the two-dimensional S[sub n] equations in x - y geometry with bilinear-discontinuous finite element spatial discretization. This method differs from previous methods in that it is unconditionally efficient for problems with isotropic or weakly anisotropic scattering. Computational results are given that demonstrate this property.

• OSTI ID: 5338603
• Journal Information: Nuclear Science and Engineering; (United States), Vol. 115:4; ISSN 0029-5639
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
22 GENERAL STUDIES OF NUCLEAR REACTORS
DISCRETE ORDINATE METHOD
FINITE ELEMENT METHOD
NEUTRON TRANSPORT THEORY
NEUTRON DIFFUSION EQUATION
REACTOR PHYSICS
THEORETICAL DATA
CALCULATION METHODS
DATA
DIFFERENTIAL EQUATIONS
EQUATIONS
INFORMATION
NUMERICAL DATA
NUMERICAL SOLUTION
PHYSICS
TRANSPORT THEORY
663610* - Neutron Physics- (1992-)
220100 - Nuclear Reactor Technology- Theory & Calculation