Forms of Approximate Radiation Transport

BRUNNER, THOMAS A.

Sandia National Laboratories

关键词: Photons;    Boltzmann Equation;    Simulation;    72 Physics Of Elementary Particles And Fields;    Computer Codes;   

DOI  :  10.2172/800993
RP-ID  :  SAND2002-1778
RP-ID  :  AC04-94AL85000
RP-ID  :  800993

美国|英语

来源: UNT Digital Library

【 摘 要 】

Photon radiation transport is described by the Boltzmann equation. Because this equation is difficult to solve, many different approximate forms have been implemented in computer codes. Several of the most common approximations are reviewed, and test problems illustrate the characteristics of each of the approximations. This document is designed as a tutorial so that code users can make an educated choice about which form of approximate radiation transport to use for their particular simulation.