Results 21 to 30 of about 139,892 (279)

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

Kinetic theory for a simple modeling of phase transition: Dynamics out of local equilibrium [PDF]

open access: yes, 2018
This is a continuation of the previous work (Takata & Noguchi, J. Stat. Phys., 2018) that introduces the presumably simplest model of kinetic theory for phase transition. Here, main concern is to clarify the stability of uniform equilibrium states in the
Hattori, Masanari   +3 more
core   +2 more sources

Analysis of the thermomechanical inconsistency of some extended hydrodynamic models at high Knudsen number [PDF]

open access: yes, 2012
There are some hydrodynamic equations that, while their parent kinetic equation satisfies fundamental mechanical properties, appear themselves to violate mechanical or thermodynamic properties.
B. V. Alexeev   +9 more
core   +3 more sources

Effect of fractional time derivatives to pressure-driven flow through the horizontal microchannel

open access: yesJournal of Amasya University the Institute of Sciences and Technology, 2023
This research applies fractional time derivatives to fluid flow through a horizontal microchannel. It uses fractional time derivatives with the Laplace transform technique and method of undetermined coefficient to analyze and obtain solutions of the ...
Huzaifa Muhammad Tahir   +2 more
doaj   +1 more source

Incompressible viscous flow near the leading edge of a flat plate admitting slip [PDF]

open access: yes, 1975
The shear stress at the leading edge, calculated on basis of the Navier-Stokes equations and the no-slip boundary condition, approaches infinity. However, taking into account the mean free path of the molecules, which implies admitting a certain slip ...
A. E. P. Veldman   +6 more
core   +1 more source

Mass spectrometric production of heterogeneous metal clusters using Knudsen cell [PDF]

open access: yesHemijska Industrija, 2016
Knudsen effusion mass spectrometry or high-temperature method of mass spectrometry for decades gives new information about saturated vapor of hardly volatile compounds and it is an important method in the discovery of many new molecules ...
Veljković Filip M.   +2 more
doaj   +1 more source

Transition Gas Flow Between Two Parallel Plates with a Slit-Type Obstacle of Various Geometry by Event Driven Molecular Dynamics Simulation

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
In this study, pressure-driven flow through a slit-type obstacle with various length (L) and height (H) placed in between two parallel plates was investigated by Event Driven Molecular Dynamics (EDMD) simulation.
Volkan Ramazan Akkaya   +2 more
doaj   +1 more source

Effects of Slip Boundaries on Mixed Convection of Al2O3-water Nanofluid in Microcavity [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2015
Due to the importance of the slip effect on modeling of microchannel and microcavity, numerical investigations have been introduced in this work for studying the mixed convection of Al2O3-water nanofluid in a square microcavity.
A. R. Rahmati   +3 more
doaj  

Acoustic Limit for the Boltzmann equation in Optimal Scaling [PDF]

open access: yes, 2009
Based on a recent $L^{2}{-}L^{\infty}$ framework, we establish the acoustic limit of the Boltzmann equation for general collision kernels. The scaling of the fluctuations with respect to Knudsen number is optimal.
Guo, Yan, Jang, Juhi, Jiang, Ning
core   +2 more sources

A volume-based hydrodynamic approach to sound wave propagation in a monatomic gas [PDF]

open access: yes, 2009
We investigate sound wave propagation in a monatomic gas using a volume-based hydrodynamic model. In Physica A vol 387(24) (2008) pp6079-6094, a microscopic volume-based kinetic approach was proposed by analyzing molecular spatial distributions; this led
Cattaneo C.   +7 more
core   +2 more sources

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