Results 21 to 30 of about 55,042 (216)

ACS Algorithm in Discrete Ordinates for Pressure Vessel Dosimetry

EPJ Web of Conferences, 2016
The Adaptive Collision Source (ACS) method can solve the Linear Boltzmann Equation (LBE) more efficiently by adaptation of the angular quadrature order. This is similar to, and essentially an extension of, the first collision source method.
Walters William, Haghighat Alireza
doaj   +1 more source

The temperature-jump problem in rarefied-gas dynamics [PDF]

, 2000
An analytical version of the discrete-ordinates method is used here to solve the classical temperature-jump problem based on the BGK model in rarefied-gas dynamics.
C. E. Siewert, L. B. Barichello
core   +1 more source

Neutron angular flux reconstruction in slab geometry using multigroup discrete ordinates transport models

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, R. C. Barros, H. Alves Filho   +2 more
doaj   +1 more source

Thermal breakage of window glass in room fires conditions - Analysis of some important parameters [PDF]

, 1997
In a compartment fire, the breakage and possible fallout of a window glass has a significant impact on the fire dynamics. The thermal breakage of glass depends on various parameters such as glass type, edge shading, edges conditions and constraints on ...
Siaka Dembele, Ricardo A.F. Rosario, Jennifer X. Wen, McJunkins, Mai, Pilette, Emmons, Barth, Pagni, Hassani, Pagni, Chow, Cuzzillo, Keski-Rahkonen, Pagni, Joshi, Sincaglia, Parry, Dembele, McGrattan, Dembele, Shields, Chow, Tofilo, Dembele, ANSYSInc, Weibull, Carlson, Gardon, Chandrupatla, Warren, Pilkington Plc, Harada, Mowrer, Xie, Lehman, Lamers   +36 more
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 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

A Nuclear Reactor Transient Methodology Based on Discrete Ordinates Method

Science and Technology of Nuclear Installations, 2014
With the rapid development of nuclear power industry, simulating and analyzing the reactor transient are of great significance for the nuclear safety. The traditional diffusion theory is not suitable for small volume or strong absorption problem. In this
Shun Zhang, Bin Zhang, Penghe Zhang, Hui Yu, Yixue Chen   +4 more
doaj   +1 more source

Disinfection performance of an ultraviolet lamp: a CFD investigation

Acta Polytechnica, 2022
Ultraviolet (UV)-based devices have shown their effectiveness on various germicidal purposes. To serve their design optimisation, the disinfection effectiveness of a vertically cylindrical UV lamp, whose wattage ranges from P = 30 − 100 W, is numerically
Cuong Mai Bui, Nguyen Duy Minh Phan, Ngo Quoc Huy Tran, Le Anh Doan, Quang Truong Vo, Duy Chung Tran, Thi Thanh Vi Nguyen, Duc Long Nguyen, Van Sanh Huynh, Tran Anh Ngoc Ho   +9 more
doaj   +1 more source

Verification of the Discrete Ordinates Goal-Oriented Multi-Collision Source Algorithm with Neutron Streaming Problems

Energies, 2022
The shielding calculation of neutron streaming problems with ducts is characterized by the strong anisotropy of angular flux, which poses a challenge for the analysis of nuclear installations.
Xinyu Wang, Bin Zhang, Yixue Chen, Jun Xiong   +3 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