Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] aadk_v1_0.gz(5 Kbytes)|
|Manuscript Title: SNEX: semianalytic solution of the one-dimensional discrete ordinates transport equation with diamond differenced angular fluxes.|
|Authors: B.R. Wienke|
|Program title: SNEX|
|Catalogue identifier: AADK_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 38(1985)397|
|Programming language: Fortran.|
|Operating system: CTSS.|
|RAM: 152K words|
|Word size: 64|
|Keywords: Radiative transfer, Transport solver, Radiation, Multigroup discrete Ordinates equation.|
|Classification: 21.1, 21.2.|
Nature of problem:
SNEX is a code which solves the single group, one-dimensional (plane, cylinder, sphere) discrete ordinates transport equations with diamond approximation for the angular fluxes. It generates exact numerical solution to the discrete ordinates equations in one-dimensional geometries for transport physics applications (e.g. hydrodynamics, plasma, radiation transfer and neutron transport physics). Cross sections are user specified. Solutions are obtained by numerically integrating the inhomogeneous source terms and adding them to the homogeneous (analytic) solutions in the standard fashion. Simple relationships between angular quadratures permit application of the method to plane, cylindrical and spherical geometries. Analysis is confined to isotropic scattering. Simple theory and methodology are presented and discussed.
Using adaptive 7-point Newton-Cotes quadrature routines, SNEX formally inverts the one-dimensional transport equation with diamond differenced angular fluxes for numerical solution.
SNEX processes an S8, 10-coarse mesh region, boundary source problem in spherical geometry in 2 s.
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