Results 21 to 30 of about 143,065 (295)

Investigation of hydrodynamic parameters inside a gas centrifuge rotor in the presence of hydrogen fluoride and air light gases using DSMC and Boltzmann distribution function [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2020
The Boltzmann equation which describes binary collisions between molecules is a very important equation in physics and fluid dynamics. Direct Monte Carlo simulation is one of the methods to solve the Boltzmann equation. The moisture can leak to the fluid
M. Khajenoori   +3 more
doaj   +1 more source

Investigating the R, Q, QI model cascades in multicomponent system by gas centrifuge [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2023
In this research, the analytical and numerical comparison of the R model cascade with Q and QI model cascades for stable isotope separation has been done.
F. Mansourzadeh, A. Norouzi
doaj   +1 more source

Mathematical Modeling of Non-Stationary Hydraulic Process Occurring in the Gas Centrifuge Cascade During the Separation of Multicomponent Isotope Mixtures [PDF]

open access: yes, 2016
This article presents results of development of the mathematical model of nonstationary separation processes occurring in gas centrifuge cascades for separation of multicomponent isotope mixtures. This model was used for the calculation parameters of gas
Orlov, Aleksey Alekseevich   +2 more
core   +1 more source

Investigation of concentration variation of the components of a three-component gas mixtures in the radial and axial direction of a gas centrifuge machine under “total reflux flow” conditions by using the DSMC method [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2019
In this paper, using a new combinatory meshing technique in the axisymmetric coordinate, a MCC-DSMC solver is introduced. Using this solver, the flow and the concentration variation inside a centrifuge machine in a rigid body rotation mode with the DSMC ...
S Yousefi Nasab   +4 more
doaj   +1 more source

Modeling and simulation of transient performance of uranium enrichment cascade in the event of a crash of gas centrifuge machines [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2020
One of the significant phenomena in the operational conditions of the enrichment cascades is the sudden crash of a number of separate machines along the cascade.
A.R. Keshtkar   +3 more
doaj   +1 more source

Modeling of filling gas centrifuge cascade for nickel isotope separation by feed flow input to different stages [PDF]

open access: yes, 2012
The article presents results of research filling gas centrifuge cascade by process gas fed into different stages. The modeling of filling cascade was done for nickel isotope separation.
Belyakov, Andrey   +3 more
core   +1 more source

Mathematical Modeling of Nonstationary Separation Processes in Gas Centrifuge Cascade for Separation of Multicomponent Isotope Mixtures

open access: yesMATEC Web of Conferences, 2016
This article presents results of development of the mathematical model of nonstationary separation processes occurring in gas centrifuge cascades for separation of multicomponent isotope mixtures. This model was used for the calculation parameters of gas
Orlov Alexey   +2 more
doaj   +1 more source

Centrifugal Separation of Titanium Isotopes Using Titanium Tetrachloride as Processing Gas

open access: yesJournal of Isotopes, 2020
Stable isotope techniques have been widely used in modern agriculture, ecological environment, medical diagnosis, nuclear industry, fundamental physics research, and so on. Natural titanium has 5 stable isotopes.
PEI Gen;PAN Jianxiong;ZHOU Mingsheng;JIAN Conghui
doaj   +1 more source

Simulation of gas flow around the scoop in a two-dimensional (r-θ) centrifugal rotor using the direct Monte Carlo method [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2023
One of the driving factors for creating axial flow inside the gas centrifuge rotor to increase the separation performance is the scoop. Due to the exposure of the scoop to the high Mach gas flow, the flow will be shocked, and strong gradients will occur ...
V. Ghazanfari   +4 more
doaj   +1 more source

Water-Gas Imbibition Relative Permeability: Literature Review, Direct versus Indirect Methods and Experimental Recommendations [PDF]

open access: yesE3S Web of Conferences, 2023
When an active aquifer encroaches into a gas bearing reservoir or when an oil rim sweeps gas during late depletion of the gas cap, gas displacement by liquid is important for estimating the gas recovery.
Pairoys Fabrice, Caubit Cyril
doaj   +1 more source

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