ISSN Online: 2379-1748
ISBN Flash Drive: 978-1-56700-469-4
ISBN Online: 978-1-56700-470-0
Second Thermal and Fluids Engineering Conference
Immiscible Displacement in a Partial Porous Channel using the Lattice Boltzmann Method
Abstract
In this article, the LBM with the pseudo-potential model is used to study the fingering
characteristics during the immiscible displacement process in a partial porous channel. A two-phase
flow in a square cavity and a single channel two-phase displacement were used to validate the
numerical model. The porous part of the channel is reconstructed using the quartet structure generation
set (QSGS) method. The viscosity ratio between the displaced and displacing fluids, the interfacial
interaction force, the surface wettability and the porosity of the porous media were studied in this
article. The results show that fingering increases with increasing the viscosity ratio, fluid-fluid
interaction force and fluid-solid interaction force. This leads to less efficient displacement process with
more un-displaced fluid inside the porous region. It was also observed that more displaced fluid
remains trapped inside the porous region when the porosity decreases.