Effect of temperature level on parallel mixing of two gas streams

Zahmatkesh, İman; Emdad, Homayoun; Alishahi, Mohammad Mehdi

doi:10.1016/j.mechrescom.2011.01.004

Cited by 4 publications

(1 citation statement)

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“…In the present contribution, a multifluid model with previous success in the simulation of monoatomic gases in the continuum flow regime [25][26][27][28] is applied to some slip flows of binary gas mixtures between parallel plates. This is attained by the application of separate velocity-slip and temperature-jump boundary conditions for each of the constituents.…”

Section: Introductionmentioning

confidence: 99%

Multifluid Description of Rarefied Gas Mixture Flows

Zahmatkesh¹

2020

Journal of Thermal Engineering

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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 behavior of the constituents of a rarefied gas mixture. Afterwards, multifluid balance equations in conjunction with these boundary conditions are solved for some slip flows of binary gas mixtures between parallel plates. The corresponding results are compared with those of a previously developed Navier-Stokes solver. Inspection of the results indicates that while the Navier-Stokes equations may lose their accuracy under high rarefaction, non-equilibrium features are properly captured by developed multifluid description. This successful method is thereafter utilized to discuss the consequences of velocity-slip, the tangential-momentum-accommodation coefficient, and mass disparity of the mixture constituents on the degree of non-equilibrium between the constituents of the gas mixtures between parallel plates.

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Section: Introductionmentioning

confidence: 99%