A hybrid CFD-DSMC Method for Numerical Simulation of the Rotating Cylinder Flows [PDF]
Journal of Nuclear Research and Applications, 2023 In this work, we attempted to simulate UF6 gas flow in the rarefied and continuum areas of the rotating cylinder using CFD, DSMC, and hybrid one-way and two-way CFD-DSMC methods.
V. Ghazanfari +2 more
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Investigation of feed flow effect using CFD-DSMC method in a gas centrifuge [PDF]
Journal of Nuclear Research and Applications, 2022 In this study, the effect of rarefied region in the rotor of the centrifuge was investigated. In a rotor of the centrifuge, the feed inlet is positioned in the rarefied area.
V. Ghazanfari +2 more
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Dimensional Direct Simulation Monte Carlo Simulation of Thruster Plumes [PDF]
فصلنامه علوم و فناوری فضایی, 2022 The interaction of thruster plumes with satellite components can have undesirable effects, such as disturbance force/torque, thermal loading, and species deposition in the surfaces.
Hamed Alisadeghi +2 more
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Using the molecular dynamics method of LAMMPS software in OpenFOAM open source software to analyze a gas centrifuge machine [PDF]
مجله علوم و فنون هستهای, 2023 In order to modeling the gas behavior inside the rotor of a gas centrifuge, a powerful tool is needed to overcome the computational constraints of gas inside the centrifuge along with the ability to apply all drives at the all flow regimes.
S. Yousefi-Nasab +2 more
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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]
مجله 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
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Effect of formation of argon clusters on a supersonic outflow into a rarefied medium [PDF]
E3S Web of Conferences, 2023 A model of the argon condensation process has been developed for the direct simulation Monte Carlo (DSMC) method. The model includes the following processes: formation of dimers, merging of clusters, sticking of monomers to clusters, evaporation of ...
Zaitsev Alexander +2 more
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Advances in Aerodynamics, 2021 The unified stochastic particle method based on the Bhatnagar-Gross-Krook model (USP-BGK) has been proposed recently to overcome the low accuracy and efficiency of the traditional stochastic particle methods, such as the direct simulation Monte Carlo ...
Fei Fei, Yang Ma, Jie Wu, Jun Zhang
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Simulation of Aerodynamic Properties of Rarefied Gas Flow on Satellite Panel by DSMC Method [PDF]
فناوری در مهندسی هوافضا, 2022 In this research, the method of simulating the rarefied gas flow on a flat plate and calculating aerodynamic properties have been investigated using direct simulation Monte Carlo or DSMC-Open Foam Software.
SAIED ESKANDARI +2 more
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Accelerating DSMC data extraction. [PDF]
, 2006 In many direct simulation Monte Carlo (DSMC) simulations, the majority of computation time is consumed after the flowfield reaches a steady state. This situation occurs when the desired output quantities are small compared to the background fluctuations. For example, gas flows in many microelectromechanical systems (MEMS) have mean speeds more than two
Gallis, Michail A. +1 more
openaire +2 more sources
A hybrid sliding mode control based on a nonlinear PID surface for nonlinear chemical processes
Engineering Science and Technology, an International Journal, 2023 This work formulated and synthesized a hybrid control framework based on sliding mode control and internal model concepts. The resulting design conducts a Dynamic Sliding Mode Control (DSMC) approach based on a Nonlinear PID (NPID) sliding surface.
Mateo Vásquez +4 more
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