Spherical harmonics method for a two-dimensional multigroup transport equation using a semi-discrete ordinates equation: Part II

Journal Article · Sat Mar 01 04:00:00 EST 1986 · Nucl. Sci. Eng.; (United States)

OSTI ID:5613954

Kobayashi, K; Misawa, T

It is shown that the semi-discrete ordinates equation can be used to create a computer program for a general order of P/sub L/ approximations for solving the multigroup neutron transport equation in two-dimensional x-y geometry. Sample calculations for problems using up to a P/sub 7/ approximation and up to four energy groups are given, and the results are compared with corresponding ones obtained by the discrete ordinates method. As the order of approximations increases, both results show good agreement, when the influence of the ray effect is not appreciable. The advantage of the present method is that the ray effect does not occur, which is the problem in the discrete ordinates method.

• Research Organization: Kyoto University, Department of Nuclear Engineering, Yoshida, Kyoto
• OSTI ID: 5613954
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 92:3; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220100* -- Nuclear Reactor Technology-- Theory & Calculation
COMPUTER CALCULATIONS
DIFFERENTIAL EQUATIONS
DISCRETE ORDINATE METHOD
EQUATIONS
HARMONICS
NEUTRON DIFFUSION EQUATION
NEUTRON TRANSPORT THEORY
NUMERICAL SOLUTION
OSCILLATIONS
PROGRAMMING
TRANSPORT THEORY