One-Dimensional Models for Neutral Particle Transport in Ducts
- 12 May 1986
- journal article
- research article
- Published by Taylor & Francis in Nuclear Science and Engineering
- Vol. 93 (1) , 13-30
- https://doi.org/10.13182/nse86-1
Abstract
The problem of monoenergetic neutral particle transport in an evacuated duct of arbitrary cross-sectional geometry with partial isotropic reflection at the duct walls is considered. This five-variable (three in space, two in angle) transport problem is approximated by a coupled set of N two-variable (one in space, one in angle) problems via a simple Galerkin (or variational) procedure. Numerical comparisons with exact results indicate that the N = 2 approximation is remarkably accurate for predicting the wall absorption and particle fluxes at the duct ends.Keywords
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