Gray and multigroup radiation transport through 3D binary stochastic media with different sphere radii distributions

Journal Article · Tue Dec 06 00:00:00 EST 2016 · Journal of Quantitative Spectroscopy and Radiative Transfer

DOI:https://doi.org/10.1016/j.jqsrt.2016.12.003· OSTI ID:1335627

Olson, Gordon Lee ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Here, gray and multigroup radiation is transported through 3D media consisting of spheres randomly placed in a uniform background. Comparisons are made between using constant radii spheres and three different distributions of sphere radii. Because of the computational cost of 3D calculations, only the lowest angle order, n=1, is tested. If the mean chord length is held constant, using different radii distributions makes little difference. This is true for both gray and multigroup solutions. 3D transport solutions are compared to 2D and 1D solutions with the same mean chord lengths. 2D disk and 3D sphere media give solutions that are nearly identical while 1D slab solutions are fundamentally different.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC52-06NA25396
• OSTI ID: 1335627
• Report Number(s): LA-UR-16-20701
• Journal Information: Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 189, Issue C; ISSN 0022-4073
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
stochastic media
radiation transport