The pressure pumping of mixture through a closed two-dimensional porous domain with clogging

Authors

  • Николай Петрович Пьянников (Nikolay P. Piannikov) Perm State University
  • Борис Сергеевич Марышев (Boris S. Marychev) Institute of Continuous Media Mechanics UB RAS

DOI:

https://doi.org/10.17072/1994-3598-2018-3-14-23

Keywords:

transport in porous media, clogging, filtration, convection

Abstract

The filtration of a mixture which horizontally pumped through a rectangular region of a porous medium is considered. On the side walls of the domain a pressure drop is defined, which determines the filtration flow, the upper and lower boundaries are assumed to be impermeable. It is also taken into account that the transfer of any insoluble solute in a porous medium is accompanied by the process of its deposition onto the walls by immobilization (sorption effects). Immobilization slows down the transport, removing a portion of the solute from the stream. The adsorbed part of solute takes up part of the pore volume, thereby reducing the porosity and permeability of the medium, which results in partial or complete blockage of the medium. The propagation of a heavy solute in a gravitational field is investigated, it is shown that, at a sufficient concentration and a slow speed of filtration stream, the convective flow in the form of a vortex is observed. The existence of vortex leads to the additional mixing effect and entails a substantial increase in the operating time of this filter element. The conditions for the appearance of a vortex and its lifetime are investigated. The its dependences on the parameters of the system are plotted.

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Published

2018-11-21

How to Cite

Пьянников (Nikolay P. Piannikov) Н. П., & Марышев (Boris S. Marychev) Б. С. (2018). The pressure pumping of mixture through a closed two-dimensional porous domain with clogging. Bulletin of Perm University. Physics, (3(41). https://doi.org/10.17072/1994-3598-2018-3-14-23

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Section

Regular articles

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