Results 31 to 40 of about 49,045 (194)
Brazilian Journal of Radiation Sciences, 2021 Presented here is an extension of the spectral Green’s function-constant nodal (SGF-CN) method for the numerical solution of energy multigroup, fixed-source, discrete ordinates (SN) problems in X, Y-geometry with arbitrary L’th-order of scattering ...
Welton Menezes +2 more
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Low-Memory, Discrete Ordinates, Discontinuous Galerkin Methods for Radiative Transport [PDF]
SIAM Journal on Scientific Computing, 2020 The discrete ordinates discontinuous Galerkin ($S_N$-DG) method is a well-established and practical approach for solving the radiative transport equation. In this paper, we study a low-memory variation of the upwind $S_N$-DG method. The proposed method uses a smaller finite element space that is constructed by coupling spatial unknowns across ...
Zheng Sun, Cory D. Hauck
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Brazilian Journal of Radiation Sciences, 2023 In this article, we present an application of the coarse-mesh Deterministic Spectral Method (SDM) to generate multigroup angular fluxes in one-dimensional spatial domains using the neutron transport stationary equation, in the formulation of discrete ...
F. T. C. S. Balbina +2 more
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Analytical Models of Exoplanetary Atmospheres. IV. Improved Two-stream Radiative Transfer for the Treatment of Aerosols [PDF]
, 2017 We present a novel generalization of the two-stream method of radiative transfer, which allows for the accurate treatment of radiative transfer in the presence of strong infrared scattering by aerosols.
Heng, Kevin, Kitzmann, Daniel
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Results in EngineeringThis article introduces a novel quadrature scheme for the discrete ordinates method (DOM) called Uniform Constant Weight Quadrature (UCWQ). A new version of the discrete ordinates method has been developed to address the shadowing effects in gas-filled ...
Taoufik Gassoumi +2 more
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Nuclear Engineering and TechnologyThis paper presents a solution scheme for the SN neutron transport equation using the discontinuous Galerkin method, implemented within the WINGS framework. The resulting SN-DG-WINGS program is capable of solving both steady-state eigenvalue problems and
Xiantao Cui +5 more
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Sparse Discrete Ordinates Method in Radiative Transfer [PDF]
, 2017 The stationary monochromatic radiative transfer equation (RTE) is a partial differential transport equation stated on a five-dimensional phase space, the Cartesian product of physical and angular domain.
Grella, Konstantin, Schwab, Christoph
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, 2018 A discrete spherical harmonics method is developed for the radiative transfer problem in inhomogeneous polarized planar atmosphere illuminated at the top by a collimated sunlight while the bottom reflects the radiation. The method expands both the Stokes
Kamdem, Hervé Thierry Tagne +2 more
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Brazilian Journal of Radiation Sciences, 2021 In this paper, we propose a numerical methodology for the development of a method of the spectral nodal class that generates numerical solutions free from spatial truncation errors.
Amaury Muñoz Oliva +3 more
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Low-energy electron transport with the method of discrete ordinates [PDF]
, 1971 The one-dimensional discrete ordinates code ANISN was adapted to transport low energy (a few MeV) electrons. Calculated results obtained with ANISN were compared with experimental data for transmitted electron energy and angular distribution data for ...
Alsmiller, R. G., Jr. +4 more
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