Results 31 to 40 of about 10,814,884 (348)

Entropy Generation Due to Laminar Incompressible Forced Convection Flow Through Parallel-Plates Microchannel

open access: yesEntropy, 2004
: The entropy generation due to steady laminar forced convection fluid flow through parallel plates microchannel is investigated numerically. The effect of Knudsen, Reynolds, Prandtl, Eckert numbers and the nondimensional temperature difference on ...
Mohammad Al-Nimr   +2 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

On the modelling of isothermal gas flows at the microscale [PDF]

open access: yes, 2008
This paper makes two new propositions regarding the modelling of rarefied (non-equilibrium) isothermal gas flows at the microscale. The first is a new test case for benchmarking high-order, or extended, hydrodynamic models for these flows.
Reese, Jason M., Lockerby, Duncan A.
core   +1 more source

Comparing macroscopic continuum models for rarefied gas dynamics : a new test method [PDF]

open access: yes, 2006
We propose a new test method for investigating which macroscopic continuum models, among the many existing models, give the best description of rarefied gas flows over a range of Knudsen numbers.
Zheng, Yingsong   +2 more
core   +1 more source

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

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

Analytical solution of axi-symmetrical lattice Boltzmann model for cylindrical Couette flows [PDF]

open access: yes, 2012
Analytical solution for the axi-symmetrical lattice Boltzmann model is obtained for the low-Mach number cylindrical Couette flows. In the hydrodynamic limit, the present solution is in excellent agreement with the result of the Navier-Stokes equation ...
Jianping Meng   +7 more
core   +1 more source

Couette flow at high Knudsen number between wall and liquid boundaries [PDF]

open access: yes, 2023
This paper presents molecular dynamics simulations of the Couette flow of a rarefied gas between the liquid and wall boundaries and, in particular, investigates the boundary conditions for the Boltzmann equation at the liquid interface.
Tabe, Hirofumi   +7 more
core   +3 more sources

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  

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