Results 11 to 20 of about 8,659,134 (281)

A diffusive information preservation method for small Knudsen number flows [PDF]

open access: yesJournal of Computational Physics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fei Fei, Jing Fan
openaire   +4 more sources

Computing the near-wall region in gas micro- and nanofluidics : critical Knudsen layer phenomena [PDF]

open access: yes, 2006
In order to capture critical near-wall phenomena in gas micro- and nanoflows within conventional CFD codes, we present scaled Navier-Stokes-Fourier (NSF) constitutive relations.
Zheng, Yingsong   +2 more
core   +6 more sources

Modeling of Knudsen layer effects in micro/nanoscale gas flows [PDF]

open access: yes, 2011
We propose a power-law based effective mean free path (MFP) model so that the Navier-Stokes-Fourier equations can be employed for the transition-regime flows typical of gas micro/nanodevices.
Dongari, Nishanth   +2 more
core   +4 more sources

Cuba In Waiting: a photographic essay

open access: yes, 2014
Film maker, photographer and University professor, Erik Knudsen was invited to see Cuba ‘before Fidel Castro died’. That was in 1998 and Castro (albeit ghosted by his brother Raul) is still, very much, alive.
Knudsen, Erik
core   +6 more sources

Computing the near-wall region in gas micro- and nanofluidics : critical Knudsen layer phenomena [PDF]

open access: yes, 2007
In order to capture critical near-wall phenomena in gas micro- and nanoflows within conventional CFD codes, we present scaled Navier-Stokes-Fourier (NSF) constitutive relations.
Reese, Jason M.   +2 more
core   +2 more sources

On Some Theoretical Aspects of The Evaporation Process of a Droplet and Its Optimal Size When Extinguishing Fires

open access: yesInventions, 2023
We are proposing a model mathematical description of droplet evaporation using the kinetic approach. We have obtained the basic equation of the theory by using the law of conserving the full power of the vapor–liquid system, which has not been done ...
Sergey Oktyabrinovich Gladkov
doaj   +1 more source

Low-Knudsen-number photophoresis of aerosol spheroids [PDF]

open access: yesJournal of Colloid and Interface Science, 2005
The photophoretic motion of a freely suspended aerosol spheroid exposed to a radiative heat flux that is oriented arbitrarily with respect to its axis of revolution is analytically studied. The Knudsen number is assumed to be so small that the fluid flow can be described by a continuum model with a thermal slip at the particle surface.
Ou, Chang L., Keh, Huan J.
openaire   +2 more sources

Fractional time derivative on fluid flow through horizontal microchannel filled with porous material

open access: yesInternational Journal of Aeronautics and Astronautics, 2023
Fractional time derivative is considered in the description of the unsteady fluid flow through a horizontal microchannel filled with porous material. The resultant governing equations were solved using the Laplace transform technique and the method of ...
Muhammad Kaurangini   +2 more
doaj   +1 more source

Impact of Improved Design on Knudsen Force for Micro Gas Sensor

open access: yesMicromachines, 2020
Knudsen force generated by thermally driven gas flow in a microscale structure has been used for gas detection and has shown immeasurable potential in the field of microelectromechanical system (MEMS) gas sensors due to its novel sensing characteristics.
Xiaowei Wang   +4 more
doaj   +1 more source

Thermal Transpiration Flow: Molecular Dynamics Study from Dense to Dilute Gas

open access: yesFluids, 2023
Thermal transpiration flow, a flow from cold to hot, driven by a temperature gradient along a wall under a high Knudsen number condition, was studied using the molecular dynamics method with a two-dimensional channel consisting of infinite parallel ...
Hiroki Yamaguchi, Gota Kikugawa
doaj   +1 more source

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