4.5 Article

Pore-scale physics of drying porous media revealed by Lattice Boltzmann simulations

Journal

DRYING TECHNOLOGY
Volume 40, Issue 6, Pages 1114-1129

Publisher

TAYLOR & FRANCIS INC
DOI: 10.1080/07373937.2020.1850469

Keywords

Lattice Boltzmann method; pore network model; capillary valve effect; merge and burst invasion; Haines jumps

Ask authors/readers for more resources

In this study, the Shan Chen Lattice Boltzmann method (LBM) is used to simulate the pore-scale physics of drying porous media. The mechanisms responsible for multiphase fluid transport in drying porous media are revisited and the physical effects such as capillary valve effect and Haines jumps are described. The observed fluctuations in drying rate curves, caused by Haines jumps during gas invasion, inspire the hybrid pore-scale technique combining LBM and pore network model to track micro-macro interactions in drying porous media.
In this study, the Shan Chen Lattice Boltzmann method (LBM) is implemented to simulate pore-scale physics of drying porous media. The pore-scale mechanisms responsible for multiphase fluid transport in drying porous media are revisited, and the physical effects such as capillary valve effect and Haines jumps are delineated. Fluctuations observed in drying rate curves are realized to be caused by Haines jumps during the fast invasion of the gas phase into the complex geometry of the pore space. Furthermore, it is observed that the fluctuations are significant in the initial period of drying and diminish as the drying front recedes into the porous medium. The observed fluctuations in drying rate curves render the inspiration to reconcile LBM and pore network model as a hybrid pore-scale technique to track the micro-macro interactions in drying porous media.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.5
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available