Lattice Boltzmann Modeling of Drying of Porous Media Considering Contact Angle Hysteresis.

ABSTRACT: Drying of porous media is governed by a combination of evaporation and movement of the liquid phase within the porous structure. Contact angle hysteresis induced by surface roughness is shown to influence multi-phase flows, such as contact line motion of droplet, phase distribution during drainage and coffee ring formed after droplet drying in constant contact radius mode. However, the influence of contact angle hysteresis on liquid drying in porous media is still an unanswered question. Lattice Boltzmann model (LBM) is an advanced numerical approach increasingly used to study phase change problems including drying. In this paper, based on a geometric formulation scheme to prescribe contact angle, we implement a contact angle hysteresis model within the framework of a two-phase pseudopoten

SUBMITTER: Qin F 

PROVIDER: S-EPMC8550062 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature