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A 3-D time-dependent unstructured tetrahedral-mesh SP{sub N} method

Conference ·
OSTI ID:10187077
;  [1];  [2]
  1. Los Alamos National Lab., NM (United States)
  2. Michigan Univ., Ann Arbor, MI (United States). Dept. of Nuclear Engineering
We have developed a 3-D time-dependent multigroup SP{sub n} method for unstructured tetrahedral meshes. The SP{sub n} equations are expressed in a canonical form which allows them to be solved using standard diffusion solution techniques in conjunction with source iteration, diffusion-synthetic acceleration, and fission-source acceleration. A computational comparison of our SP{sub n} method with an even-parity S{sub n} method is given.
Research Organization:
Los Alamos National Lab., NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
10187077
Report Number(s):
LA-UR--94-3382; CONF-950420--4; ON: DE95000927
Country of Publication:
United States
Language:
English