Results 31 to 40 of about 2,171 (266)
Energies, 2023 In this study, we first considered the influence of micro-nozzle wall roughness structure on molecular collision and reflection behavior and established a modified CLL model.
Xuhui Liu +4 more
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A comparison of simulation methods for rarefied gas flows [PDF]
Physics of Fluids, 1995 Simulation methods like DSMC are efficient tools to compute rarefied gas flows. Using supercomputers it is possible to include various real gas effects like vibrational energies or chemical reactions in a gas mixture. Nevertheless it is still necessary to improve the accuracy of the current simulation methods in order to reduce the computational effort.
Struckmeier, Jens, Steiner, Konrad
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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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Highly rarefied gas flows in rough channels of finite length
Advances in Aerodynamics, 2023 Highly rarefied gas flows through a rough channel of finite length with small bumps appended to its surfaces are investigated, by varying the accommodation coefficient $$\alpha$$ α in Maxwell’s diffuse-specular boundary condition, the characteristic size
Zheng Shi, Yulong Zhao, Wei Su, Lei Wu
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A unified gas-kinetic scheme for continuum and rarefied flows [PDF]
Journal of Computational Physics, 2010 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kun Xu 0001, Juan-Chen Huang
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Kongqi donglixue xuebaoRarefied gas dynamics serves as an essential bridge connecting molecular-scale motion to macroscopic fluid transport behavior, with broad applications in spacecraft re-entry flight, hypersonic aerodynamics, and micro/nano-scale transport.
Zhongzheng Jiang +7 more
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Micromachines, 2023 The direct simulation Monte Carlo (DSMC) method, which is a probabilistic particle-based gas kinetic simulation approach, is employed in the present work to describe the physics of rarefied gas flow in super nanoporous materials (also known as mesoporous)
Vahid Shariati +2 more
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Geometrically Non-Linear Vibration of a Cantilever Interacting with Rarefied Gas Flow
Cybernetics and Information Technologies, 2020 The work is devoted to study 2D pressure driven rarefied gas flow in a microchannel having an elastic obstacle. The elastic obstacle is clamped at the bottom channel wall and its length is half of the channel height.
Shterev Kiril, Manoach Emil
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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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Evaporation Boundary Conditions for the Linear R13 Equations Based on the Onsager Theory
Entropy, 2018 Due to the failure of the continuum hypothesis for higher Knudsen numbers, rarefied gases and microflows of gases are particularly difficult to model.
Alexander Felix Beckmann +3 more
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