Transient Macroscopic Chemistry in the DSMC Method [PDF]
AIP Conference Proceedings, 2008 In the Direct Simulation Monte Carlo method, a combination of statistical and deterministic procedures applied to a finite number of `simulator' particles are used to model rarefied gas-kinetic processes. Traditionally, chemical reactions are modelled using information from specific colliding particle pairs.
M. J. Goldsworthy +3 more
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Application of DSMC method to astrophysical flows [PDF]
Symposium - International Astronomical Union, 2003 The Direct Simulation Monte Carlo (DSMC) method, developed originally to calculate rarefied gas dynamical problems, is applied to continuous flow including shocks assuming that the Knudsen number is sufficiently small. In particular, we study the formation of spiral shocks in the accretion disc of a close binary system.
Takuya Matsuda +2 more
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On the validity of the Boltzmann equation to describe low density granular systems [PDF]
, 2003 The departure of a granular gas in the instable region of parameters from the initial homogeneous cooling state is studied. Results from Molecular Dynamics and from Direct Monte Carlo simulation of the Boltzmann equation are compared.
A. Goldshtein +23 more
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Dynamic sliding mode control of single‐stage boost inverter with parametric uncertainties and delay
IET Power Electronics, 2021 Here, a novel control strategy based on sliding mode control for the single‐stage boost inverter is presented. The goal is to achieve a system with robustness against inherent delays and variations in parameters, fast response, and high‐quality AC ...
Farideh Mohammadhassani +1 more
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Unsteady Flow Driven by the Counter-Flow Jets of High-Altitude Engine Based on DSMC Simulation
气体物理, 2023 Counter-flow engines are often used for aircraft slowing or separating. In order to study the interaction between the counter-flow jets and free stream at high altitudes, the rarefied flow driven by two counter-flow jets and hypersonic free stream was ...
Jun-lin WU +4 more
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Investigation gas behavior inside a gas centrifuge using dsmc code developed and dsmcFOAM solver [PDF]
مجله علوم و فنون هستهای, 2021 To model a gas behavior within a centrifuge machine, a powerful tool is required similarly. With high-speed cover, all the computational limitations for applying the influential derives such as feed, scoop, baffle effects, etc., formed flow regimes ...
S. Yousefi nasab +4 more
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Numerical simulation of moving rigid body in rarefied gases [PDF]
, 2014 In this paper we present a numerical scheme to simulate a moving rigid body with arbitrary shape suspended in a rarefied gas. The rarefied gas is simulated by solving the Boltzmann equation using a DSMC particle method.
Hardt, Steffen +3 more
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Variance Reduction For A Discrete Velocity Gas [PDF]
, 2011 We extend a variance reduction technique developed by Baker and Hadjiconstantinou [1] to a discrete velocity gas. In our previous work, the collision integral was evaluated by importance sampling of collision partners [2].
Goldstein, D. B. +2 more
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μ-DSMC: a general viscosity method for rarefied flow [PDF]
Journal of Computational Physics, 2003 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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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]
مجله 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