Results 1 to 10 of about 449 (115)
Effects of the Wall Temperature on Rarefied Gas Flows and Heat Transfer in a Micro-Nozzle. [PDF]
Micromachines (Basel), 2023 When the satellite is in orbit, the thruster will experience drastic temperature changes (100–1000 K) under solar radiation, which will affect the rarefied gas flow state in the micro-nozzle structure of the cold gas micro-thruster.
Zhang S +5 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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Molecular diameters of rarefied gases. [PDF]
Sci Rep, 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.
Kunze S, Groll R, Besser B, Thöming J.
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Effects of Gas-Surface Interaction Conditions on the Performance of Knudsen Force-Based, Low-Pressure Micro Hydrogen Sensors. [PDF]
Micromachines (Basel)Knudsen force phenomenon caused by non-uniform temperature fields in rarefied gas has been a topic of interest among researchers of gas sensing and structure actuating for micro-electromechanical systems (MEMS).
Wang Y, Wang X, Du C, Zhang Z.
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Numerical Investigations of Rarefied Gas Flows Using the Continuum Description by the CIP Method
Journal of Fluid Science and Technology, 2011 Rarefied gas flows in the slip regime are investigated by the CIP method. The two-dimensional Couette/Poiseuille flows and two/three-dimensional rid-driven cavity flows are calculated using the Navier-Stokes (N-S) equation with the Maxwell's ...
Youichi OGATA, Takefumi KAWAGUCHI
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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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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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Multifluid description of rarefied gas mixture flows
Journal of Thermal Engineering, 2020 In the present contribution attention is focused to extend the application of multifluid descriptions to rarefied conditions for the first time . To this aim, a multifluid Maxwell model and a multifluid Smoluchowski model are proposed for near wall ...
Iman ZAHMATKESH +2 more
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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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