Results 1 to 10 of about 10,995 (155)
DSMC-LBM mapping scheme for rarefied and non-rarefied gas flows [PDF]
Journal of Computational Science, 2015 We present the formulation of a kinetic mapping scheme between the Direct Simulation Monte Carlo (DSMC) and the Lattice Boltzmann Method (LBM) which is at the basis of the hybrid model used to couple the two methods in view of efficiently and accurately ...
Clercx, H. J. H +3 more
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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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Analytical and numerical analysis of nonisothermal compressible rarefied gas flow between parallel plates [PDF]
Theoretical and Applied Mechanics, 2023 When dimensions of the flow domain become small, such as in the micro-electro-mechanical systems (MEMS) and nano-electro-mechanical systems (NEMS), rarefaction effects become more prominent.
Vulićević Petar V. +2 more
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The Half-Range Moment Method in Harmonically Oscillating Rarefied Gas Flows
Fluids, 2021 The formulation of the half-range moment method (HRMM), well defined in steady rarefied gas flows, is extended to linear oscillatory rarefied gas flows, driven by oscillating boundaries.
Giorgos Tatsios +2 more
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Rarefied gas flow in functionalized microchannels
Scientific Reports, 2023 AbstractThe interaction of rarefied gases with functionalized surfaces is of great importance in technical applications such as gas separation membranes and catalysis. To investigate the influence of functionalization and rarefaction on gas flow rate in a defined geometry, pressure-driven gas flow experiments with helium and carbon dioxide through ...
Kunze, Simon +7 more
openaire +6 more sources
Molecular dynamics simulation on the splitting of shear flow in nanochannels
AIP Advances, 2021 With the vigorous development of micro-/nanoscience and micro-/nanotechnology, fluid flows at the micro-/nanoscale have become an important research field. The molecular dynamics simulations of Couette flow in a nanochannel are carried out in this paper.
Hang Yu, Zhengyu Tian, Fan Yang, Hua Li
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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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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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Measurement of the heat transfer coefficient in gas spray cooling with low liquid flow rate [PDF]
E3S Web of Conferences, 2023 The rapid development of high power electronic, energy systems has led us to the fact that the performance of these systems is limited by their cooling capacity. Spray cooling is one of the most effective methods for cooling heated surfaces.
Sibiryakov Nikolay +2 more
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