Results 11 to 20 of about 25,025 (293)
Entropy, 2017 The numerical study of continuum-rarefied gas flows is of considerable interest because it can provide fundamental knowledge regarding flow physics. Recently, the nonlinear coupled constitutive method (NCCM) has been derived from the Boltzmann equation ...
Ke Tang, Hong Xiao
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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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Molecular free path distribution in rarefied gases [PDF]
, 2011 We present the results of investigations into the distribution of molecular free paths in rarefied gases using molecular dynamics simulations. Our tests on a range of different gas densities and confinements (unbounded, single bounding wall and parallel ...
Dongari, Nishanth +2 more
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Numerical simulation of a rarefied gas jet emanating from an ion-optical system of the microthruster [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"A jet of ionized rarefied gas escaping from an ion-optical system of a prototype resonator RF-ion thruster into the surrounding space with low background pressure is considered.
K. I. Zharikov, I. S. Vavilov
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Molecular diameters of rarefied gases
Scientific Reports, 2022 Molecular diameters are an important property of gases for numerous scientific and technical disciplines. Different measurement techniques for these diameters exist, each delivering a characteristic value.
S. Kunze +3 more
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Accuracy analysis of high-order lattice Boltzmann models for rarefied gas flows [PDF]
, 2011 In this work, we have theoretically analyzed and numerically evaluated the accuracy of high-order lattice Boltzmann (LB) models for capturing non-equilibrium effects in rarefied gas flows.
Meng, Jian-Ping, Zhang, Yonghao
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Measurement of low-pressure Knudsen force with deflection approximation for gas detection
Results in Physics, 2019 In this paper, experimental examinations are done to evaluate the thermal Knudsen force in Knudsen gauge at low-pressure condition. This work has focused on the simple technique to visibly observe the induced Knudsen force as main parameter which could ...
Dat D. Vo +3 more
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Rarefied gas dynamics and its applications to vacuum technology [PDF]
, 2007 Basic concepts of rarefied gas dynamics are given in a concise form. Some problems of rarefied gas flows are considered, namely, calculations of velocity slip and temperature jump coefficients, gas flow through a tube due to pressure and temperature ...
Sharipov, F
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Understanding of Thermal Conductance of Thin Gas Layers
Advances in Mechanical Engineering, 2013 We studied heat conductions in a thin gas layer at micro- and nanoscales between two straight walls by atomistic modeling. Since the Knudsen number is high while the gas may be not really rarefied, we use the generalized Enskog-Monte-Carlo method (GEMC ...
Xiaodong Shan, Moran Wang
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A Discrete-Ordinates Solution for the Strong Evaporation Problem in Rarefied Gas Dynamics
Trends in Computational and Applied Mathematics, 2021 In this work we solve the nonlinear strong evaporation problem in rarefied gas dynamics. The analysis is based on the BGK model, with three dimensional velocity vector, derived from the Boltzmann equation. We present the complete development of a closed
C. S. Scherer
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