Vasheghani Farahani, Mehrdad and Mousavi Nezhad, Mohaddeseh (2022) Application of lattice Boltzmann method in pore-scale characterisation of flow dynamics in three-dimensional porous media. In: 14th Annual Meeting of the International Society of Porous Media, Abu Dhabi, UAE, 30 May - 02 Jun 2022. Published in: Proceedings of the 14th Annual Meeting of the International Society of Porous Media

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Abstract

A profound understanding of the fluid flow characteristics in porous media is essential in various industrial and engineering applications such as enhanced oil recovery, geological CO2 and H2 storage, geothermal energy storage, groundwater remediation, and pharmaceutical engineering. In this study, lattice Boltzmann method (LBM) is utilised for 3D simulation of fluid flow through two porous media, consisting of grains with the same diameter: (i) a homogeneous porous domain, in which the grains are placed with a simple cubic packing configuration, and (ii) a real randomly packed porous domain reconstructed by X-ray micro-CT images. Constant velocity and pressure boundary conditions are imposed for the inlet and outlet boundaries, respectively, and the solid boundaries are adequately mapped with bounce-back boundary condition. The simulations are carried out in a wide range of Reynolds to investigate the effect of both laminar and turbulent regimes on the flow dynamics.

Upon convergence, the velocity magnitudes and components (along and transverse to the imposed flow direction) are extracted and analysed in order to investigate the dynamics of the flow. The analysis is conducted over a broad range of length scales, from the scale of individual pores to the scale of the entire medium, providing insights regarding the underlying pore-scale correlations in the flow. The simulation results show that even though the pore space available for the flow becomes more complex when the heterogeneity of the medium increases, its dynamics would not be completely random and could be correlated with the geometry of the medium. The fundamental insights from this study can be used to shed light on the effect of the pore geometry and grain heterogeneity on pore-scale phenomena associated with fluid flow in porous media such as solute transport and mixing, fluid-solid interaction, and sorption phenomena.

Item Type:	Conference Item (Poster)
Subjects:	Q Science > QE Geology T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH):	Porous materials, Porous materials -- Fluid dynamics -- Mathematical models
Journal or Publication Title:	Proceedings of the 14th Annual Meeting of the International Society of Porous Media
Publisher:	InterPore
Official Date:	15 February 2022
Dates:	Date Event June 2022 Completion 15 February 2022 Accepted
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Date of first compliant deposit:	23 June 2022
Date of first compliant Open Access:	8 July 2022
Conference Paper Type:	Poster
Title of Event:	14th Annual Meeting of the International Society of Porous Media
Type of Event:	Conference
Location of Event:	Abu Dhabi, UAE
Date(s) of Event:	30 May - 02 Jun 2022
Related URLs:	Organisation Publisher

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