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Influence of Knudsen and Mach numbers on Kelvin-Helmholtz instability
Physical Review E, 2021The combined influence of rarefaction and compressibility on classical Kelvin-Helmholtz instability is investigated with numerical simulations employing the unified gas kinetic scheme. Five different regimes in the Reynolds-Mach-Knudsen number parameter space are identified.
Vishnu Mohan +3 more
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Significance of Knudsen number and corrugation on EMHD flow under metallic nanoparticles impact
, 2020The impacts of surface wavy roughness on the viscous fluid flow inside microchannel through corrugated walls is examined. The Navier–Stokes equations are simplified by utilizing perturbation technique with incorporated microscopic slip conditions at the ...
M. Rashid, Iqra Shahzadi, S. Nadeem
semanticscholar +1 more source
Journal of Computational Physics, 2019
In this work, an improved implicit discrete velocity method (DVM) on unstructured meshes is developed for simulation of three-dimensional (3D) flows in all flow regimes. Different from the conventional DVM, in which only the kinetic governing equation (i.
Liming Yang, C. Shu, W. Yang, Jie Wu
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In this work, an improved implicit discrete velocity method (DVM) on unstructured meshes is developed for simulation of three-dimensional (3D) flows in all flow regimes. Different from the conventional DVM, in which only the kinetic governing equation (i.
Liming Yang, C. Shu, W. Yang, Jie Wu
semanticscholar +1 more source
On the Peristaltic Transport in Small-Knudsen-Number Flow
Meccanica, 2000The authors show that the mean streamwise distribution (averaged over time) due to the peristaltic motion in the case of free pumping is dominated by \(R_0\) (or \(K_n\)), which allow to determine the boundary value \(D_y\) of the \(y\)-gradient of the first-order streamwise velocity distribution.
Chu, W. Kwanghua, Fang, J.
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Physical Review E, 2018
In this paper, a coupled discrete unified gas kinetic scheme (CDUGKS) with a flexible Prandtl number is developed for the thermal compressible flows in all Knudsen number regimes.
Hongtao Liu +4 more
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In this paper, a coupled discrete unified gas kinetic scheme (CDUGKS) with a flexible Prandtl number is developed for the thermal compressible flows in all Knudsen number regimes.
Hongtao Liu +4 more
semanticscholar +1 more source
Thermophoresis in gases at small Knudsen numbers
Uspekhi Fizicheskih Nauk, 1991(1991). Thermophoresis in Gases at Small Knudsen Numbers. Aerosol Science and Technology: Vol. 15, No. 2, pp. 77-92.
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Journal of Natural Gas Science and Engineering, 2018
In recent years, application of porous media is highlighted among researchers due to their wide range of usability in micro-scale problems, such as gas reservoirs, micro-filtering, heat exchangers, etc. With this respect, the accurate description of flow
Hadi Rostamzadeh +2 more
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In recent years, application of porous media is highlighted among researchers due to their wide range of usability in micro-scale problems, such as gas reservoirs, micro-filtering, heat exchangers, etc. With this respect, the accurate description of flow
Hadi Rostamzadeh +2 more
semanticscholar +1 more source
Colloid & Polymer Science, 1984
We consider, on the basis of dimensional analysis, the use of the Knudsen number and aerosol Knudsen number in the kinetics of Brownian coagulation of aerosols. The aerosol Knudsen numberKnp emerges naturally when one assumes that the aerosol particle motion can be described in terms of Brownian motion.
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We consider, on the basis of dimensional analysis, the use of the Knudsen number and aerosol Knudsen number in the kinetics of Brownian coagulation of aerosols. The aerosol Knudsen numberKnp emerges naturally when one assumes that the aerosol particle motion can be described in terms of Brownian motion.
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A unified gas-kinetic scheme for axisymmetric flow in all Knudsen number regimes
Journal of Computational Physics, 2018Based on kinetic model equation, a unified gas-kinetic scheme for axisymmetric flow (UGKS-AS) is proposed in the whole flow regimes. The flux transport of UGKS-AS is based on a reduced gas distribution function of a time integral solution of the full 3D ...
Shiyi Li, Qibing Li, S. Fu, K. Xu
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Low-Knudsen-number transport and deposition
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1994We present our model for transport and deposition in features for situations in which intermolecular collisions dominate the species transport. Species transport in this ‘‘low’’-Knudsen-number regime is modeled using continuum diffusion. Our model allows both homogeneous reactions and heterogeneous (surface) reactions.
Hung Liao, Timothy S. Cale
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