Numerical investigation of unsteady flow dynamics in a packed bed

D. I. Pashchenko*, A. I. Shchelokov, A. V. Satonin, I. V. Makarov

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


Numerical simulation of unsteady flow of a compressible fluid in a fixed bed filled with porous elements has been performed. The research was carried out via ANSYS Fluent software. The scientific substantiation and verification of the physical and mathematical approaches incorporated in ANSYS Fluent for the problem of unsteady flow in a fixed bed has been carried out. For the computational domain, the interfaces of the flow area and the surface of porous particles are coupled by combining the contacts into a component part. The numerical results were verified using experimental data. The study was carried out in the range of velocity from 0.25 to 3.25 m/s. An expression is proposed for determining the pressure drop in a fixed bed, in which the pressure drop depends on the velocity, flow properties and the linear coefficient of local resistance. The values of the linear coefficient of local resistance are determined for the most common nozzle shapes in the industry: cylinder, Raschig ring, convex cylinder with 7 holes, sphere with 7 holes. It was found that with an increase in velocity, the value of the linear coefficient of local resistance decreases.

Original languageEnglish
Article number012138
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - 23 Nov 2021
Externally publishedYes
Event2021 International Conference on Automatics and Energy, ICAE 2021 - Vladivostok, Russian Federation
Duration: 7 Oct 20218 Oct 2021


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