Results 31 to 40 of about 25,025 (293)
Higher-order Knudsen's permeability correction model for rarefied gas in micro-scale channels
Natural Gas Industry B, 2019 Rarefaction effect appears when gas flows in micro/nano channels, so it is difficult to accurately predict real gas flow rate by using the classical theory.
Yinbin Lu
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Asymptotic Theory of Rayleigh Problem in Rarefied Gas [PDF]
, 1979 The asymptotic theory of Rayleigh shear flow for large values of time is developed on the basis of the linearized Boltzmann-Krook equation. Asymptotic equations for mean velocity outside the Knudsen layer are obtained by employing the Hilbert expansion ...
Yamamoto, Kyoji
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A topology optimization method for rarefied gas flows
Nihon Kikai Gakkai ronbunshu, 2017 We construct a topology optimization method for two dimensional rarefied gas flow problems, based on level-set boundary expressions. The degree of rarefaction is expressed by the Knudsen number, which is the ratio of the mean free path and the ...
Ayami SATO +4 more
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Comparing macroscopic continuum models for rarefied gas dynamics : a new test method [PDF]
, 2006 We propose a new test method for investigating which macroscopic continuum models, among the many existing models, give the best description of rarefied gas flows over a range of Knudsen numbers.
Reese, Jason +2 more
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Simulating fluid flows in micro and nano devices : the challenge of non-equilibrium behaviour [PDF]
, 2009 We review some recent developments in the modelling of non-equilibrium (rarefied) gas flows at the micro- and nano-scale, concentrating on two different but promising approaches: extended hydrodynamic models, and lattice Boltzmann methods.
Reese, Jason M., Zhang, Yonghao
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The effect of system boundaries on the mean free path for confined gases
AIP Advances, 2013 The mean free path of rarefied gases is accurately determined using Molecular Dynamics simulations. The simulations are carried out on isothermal argon gas (Lennard-Jones fluid) over a range of rarefaction levels under various confinements (unbounded gas,
Sooraj K. Prabha +3 more
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FluidsNumerical modeling of gas flows in rarefied regimes is crucial in understanding fluid behavior in microscale applications. Rarefied regimes are characterized by a decrease in molecular collisions, and they lead to unusual phenomena such as gas phase ...
Michel Ho +5 more
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Thermal diffusion segregation of an impurity in a driven granular fluid
, 2014 We study segregation of an impurity in a driven granular fluid under two types of \emph{steady} states. In the first state, the granular gas is driven by a stochastic volume force field with a Fourier-type profile while in the second state, the granular ...
Garzó, Vicente, Reyes, Francisco Vega
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FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
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Multiscale simulation of interacting turbulent and rarefied gas flows in the DSMC framework
Theoretical and Applied Mechanics LettersA multiscale stochastic-deterministic coupling method is proposed to investigate the complex interactions between turbulent and rarefied gas flows within a unified framework.
Liyan Luo, Songyan Tian, Lei Wu
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