An exponential discontinuous scheme for X-Y-Z geometry transport problems Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.


  • Main Title An exponential discontinuous scheme for X-Y-Z geometry transport problems


  • Author: Wareing, T.A.
    Creator Type: Personal
  • Author: Alcouffe, R.E.
    Creator Type: Personal


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)


  • Name: Los Alamos National Laboratory
    Place of Publication: New Mexico
    Additional Info: Los Alamos National Lab., NM (United States)


  • Creation: 1996-04-01


  • English


  • Content Description: The recently developed exponential discontinuous spatial differencing scheme for the discrete-ordinate equations has been extended to x-y-z geometry with hexahedral cells. This scheme produces strictly positive angular fluxes given positive discrete-ordinate sources. The exponential discontinuous scheme has been developed and implemented into the three-dimensional, discrete-ordinate code. THREEDANT. Numerical results are given which show that the exponential discontinuous scheme is very accurate for deep-penetration transport problems with optically thick spatial meshes.
  • Physical Description: 9 p.


  • Keyword: Radiation Flux
  • Keyword: Shielding
  • Keyword: Neutron Transport Theory
  • STI Subject Categories: 99 Mathematics, Computers, Information Science, Management, Law, Miscellaneous
  • Keyword: Discrete Ordinate Method
  • STI Subject Categories: 66 Physics
  • Keyword: Mesh Generation
  • Keyword: Three-Dimensional Calculations
  • Keyword: T Codes
  • Keyword: Nonlinear Problems
  • Keyword: Radiation Transport


  • Conference: American Nuclear Society (ANS) Radiation Protection and Shielding Division topical meeting on advancements and applications in radiation protection and shielding, Falmouth, MA (United States), 21-25 Apr 1996


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report


  • Text


  • Other: TI96008130
  • Report No.: LA-UR--96-0453
  • Report No.: CONF-960415--21
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/224949
  • Office of Scientific & Technical Information Report Number: 224949
  • Archival Resource Key: ark:/67531/metadc670768


  • Display Note: OSTI as TI96008130