Results 21 to 30 of about 49,025 (228)

Radiative heat transfer during turbulent combustion [PDF]

, 2009
We investigate the radiative heat transfer in a co-flowing turbulent nonpremixed propane-air flame inside a three-dimensional cylindrical combustion chamber.
Paul, M.C., Paul, S.C.
core   +1 more source

A simple numerical scheme to linear radiative transfer in hollow and solid spheres

Semina: Ciências Exatas e Tecnológicas, 2020
In this work we consider the linear radiative transfer in hollow and solid spheres and  the solution in a medium  with diffusely reflecting boundaries and energy source as well.
Cibele Aparecida Ladeia, Marcelo Schramm, Julio Cesar Lombaldo Fernandes   +2 more
doaj   +1 more source

Goal-oriented multi-collision source algorithm for discrete ordinates transport calculation

Nuclear Engineering and Technology, 2022
Discretization errors are extremely challenging conundrums of discrete ordinates calculations for radiation transport problems with void regions. In previous work, we have presented a multi-collision source method (MCS) to overcome discretization errors,
Wang Xinyu, Zhang Bin, Chen Yixue
doaj   +1 more source

An adaptive, hanging-node, discontinuous isogeometric analysis method for the first-order form of the neutron transport equation with discrete ordinate (SN) angular discretisation [PDF]

, 2017
In this paper a discontinuous, hanging-node, isogeometric analysis (IGA) method is developed and applied to the first-order form of the neutron transport equation with a discrete ordinate (SN) angular discretisation in two-dimensional space.
Eaton, M, Kophazi, J, Owens, A, Welch, J
core   +1 more source

To the solution of the equation of transfer of radiation by method of discrete ordinates in the axisymmetric domain

Известия высших учебных заведений: Проблемы энергетики, 2018
In this work the method of discrete ordinates is applied for the solution of the problem of transfering of radiation in a finite axisymmetric domain. Decisions for the conditions to model an absorbing medium are obtained.
A. V. Sadykov
doaj   +1 more source

A NOVEL COARSE-MESH METHOD APPLIED TO NEUTRON SHIELDING PROBLEMS USING THE MULTIGROUP TRANSPORT THEORY IN DISCRETE ORDINATES FORMULATIONS

Brazilian Journal of Radiation Sciences, 2021
In this paper, we propose a new deterministic numerical methodology to solve the one-dimensional linearized Boltzmann equation applied to neutron shielding problems (fixed-source), using the transport equation in the discrete ordinates formulation (SN ...
Rafael Barbosa Libotte, Hermes Alves Filho, Ricardo Carvalho de Barros   +2 more
doaj   +1 more source

TO CALCULATION OF RADIANT THERMAL STREAMS IN RECTANGULAR AREAS BY METHOD OF DISCRETE ORDINATES

Известия высших учебных заведений: Проблемы энергетики, 2017
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A. V. Sadykov
doaj   +1 more source

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
core   +2 more sources

Technique for reducing time in the calculation of eigenvalues and eigenvectors applied in neutron transport fixed-source problems

Vetor, 2023
In this work, a mathematical technique to accelerate the eigenvalue calculations, originally proposed for the Analytical Discrete Ordinates method (ADO), is applied to the coarse-mesh method Modified Spectral Deterministic (MSD), used in neutron ...
Rafael Libotte, Hermes Alves Filho, Fernando Carvalho da Silva   +2 more
doaj   +1 more source

A Data-Driven Method for Calculating Neutron Flux Distribution Based on Deep Learning and the Discrete Ordinates Method

Energies
The efficient and accurate calculation of neutron flux distribution is essential for evaluating the safety of nuclear facilities and the surrounding environment.
Yanchao Li, Bin Zhang, Shouhai Yang, Yixue Chen   +3 more
doaj   +1 more source