Back to search

Virginia Polytechnic Institute and State University

Multigroup transport equations with nondiagonal cross section matrices

Abstract

dc:description.abstract

It is shown that multigroup transport equations with nondiagonal cross section matrices arise when the modal approximation is applied to energy dependent transport equations. This work is a study of such equations for the case that the cross section matrix is nondiagonalizable. For the special case of a two-group problem with a noninvertible scattering matrix, the problem is solved completely via the Wiener-Hopf method. For more general problems, generalized Chandrasekhar H equations are derived. A numerical method for their solution is proposed. Also, the exit distribution is written in terms of the H functions.

Degree

thesis:*
Name thesis:degree_name
Ph. D.
Level thesis:degree_level
doctoral
Discipline thesis:degree_discipline
Physics
Department dc:contributor.department
Physics
Grantor dc:publisher
Virginia Polytechnic Institute and State University
Year dc:date.issued
1985

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Willis, Barton L.
Chair dc:contributor.committeechair
  • Zweifel, Paul F.
Committee members dc:contributor.committeemember
  • Hagedorn, George
  • Hannsgen, Kenneth B.
  • Greenberg, W.
  • Siswny, J.
  • Bowen, Samuel P.

Rights

dc:rights
Statement dc:rights
  • In Copyright

Identifiers

dc:identifier.*
Handle dc:identifier.uri
http://hdl.handle.net/10919/49963
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/49963

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
related terms
citation

Willis, Barton L.. Multigroup transport equations with nondiagonal cross section matrices. doctoral thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/49963