Lattice Boltzmann modeling and analysis of ceramic filtration with different pore structures

Gi Wook Lee, Byoungjin Chun, Hyun Wook Jung

Research output: Contribution to journalArticlepeer-review

Abstract

The pressure drop in the ceramic filter system of the after-treatment device has a great effect on automobile engine performance. To predict the pressure drop under various operating conditions, it is necessary to analyze how the structural properties of porous media affect the permeability. The commonly used Kozeny-Carman model correlating permeability and porosity is useful for porous media composed of spherical grains, but exhibits considerable deviations in the actual ceramic filter system with low porosity. In this study, the permeability of overlapped-random structured porous media with low porosity was numerically solved by mesoscopic lattice Boltzmann (LB) method in Darcy flow regime. Based on LB simulation results, a new capillary model modified from Kozeny-Carman model is proposed for practically predicting the permeability of complex porous filter systems, using key structural variables such as porosity, tortuosity, and effective pore-throat radius.

Original languageEnglish
Pages (from-to)1309-1316
Number of pages8
JournalKorean Journal of Chemical Engineering
Volume40
Issue number6
DOIs
Publication statusPublished - 2023 Jun

Bibliographical note

Funding Information:
This study was supported by the Ministry of Trade, Industry, and Energy (MOTIE, Korea) under the Industrial Technology Innovation Program (No. 20011712) and by National Research Foundation of Korea (NRF) grants funded by the Ministry of Science and ICT (MSIT) of the Korean government (No. NRF-2016R1A5 A1009592 and NRF-2021M3H4A6A01041234).

Funding Information:
This study was supported by the Ministry of Trade, Industry, and Energy (MOTIE, Korea) under the Industrial Technology Innovation Program (No. 20011712) and by National Research Foundation of Korea (NRF) grants funded by the Ministry of Science and ICT (MSIT) of the Korean government (No. NRF-2016R1A5 A1009592 and NRF-2021M3H4A6A01041234).

Publisher Copyright:
© 2023, The Korean Institute of Chemical Engineers.

Keywords

  • Kozeny-Carman Equation
  • Lattice Boltzmann Method
  • Permeability
  • Pore Throat
  • Porous Media
  • Tortuosity

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering

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