Numerical study of the flow of a mixture of reacting gases in an inhomogeneous catalyst layer

Mikhaylenko, C.I.; Urmancheev, S. F.

doi:10.21662/uim2003.1.018

Cited by 2 publications

(2 citation statements)

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“…The streamline given in 2b) clearly shows that, if an increase in velocity is observed behind the layer, and vice versa before the layer. This conclusion coincides with the conclusion of [16], where it is stated that the direction of the fluid flow at each point of the porous region is opposite to the pressure gradient vector.…”

Section: Resultssupporting

confidence: 90%

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Flow in a channel with porous insert

Rasulov

Dalabaev

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Filtration of an incompressible liquid (gas) in a non-deformable porou s medium is investigated. The results of numerical simulation of the hydrodynamic features of the flow arising after the passage of the liquid through a layer of an immobile porous medium are presented. An interpenetrating model of multiphase media is used to describe such flows. The porosity and permeability of the porous medium, as well as the force of interfacial interaction, are considered in the framework of compliance with the Kozeny-Karman ratio. The influence of the geometrical shape of the bulk layer on the nature and magnitude of the inhomogeneity of the flow velocity behind the obstacle is shown. Considering the shape of the porous medium significantly affects the flow parameters. Numerical simulation results are compared with experimental data. The effects of the non-uniformity of the fluid velocity field arising from the curvature of the layer surface and the influence of the arising inhomogeneity on the velocity are investigated by the methods of a computational experiment. A qualitative comparison is made of velocity inhomogeneities when a fluid flows through a porous obstacle. For the numerical implementation of the filtration equation of the interpenetrating model, a SIMPLElike algorithm was used.

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Section: Resultssupporting

confidence: 90%

“…Numerical results are obtained based on the large particle method. The work [16] is also devoted to the detection of the profile of inhomogeneities. In this work, the control volume method with a quadratic force of interaction was used in a two-dimensional [17] (a is the radius of the particles of the granular layer).…”

Section: Introductionmentioning

confidence: 99%