Simulation of the influence of surface wettability on viscous fingering phenomenon in porous media

被引：0
作者：
B. Dong
Y. Y. Yan
W. Z. Li
Y. C. Song
机构：
[1] Dalian University of Technology,Key Laboratory of Ocean Energy Utilization and Energy Conservation (Ministry of Education, China)
[2] University of Nottingham,Faculty of Engineering
来源：
Journal of Bionic Engineering | 2010年 / 7卷
关键词：
immiscible fluids; porous media; viscous fingering; wettability;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Fingering phenomena are common occurrence in the natural world. It generally takes place when a less viscous fluid displaces a more viscous fluid typically in porous media. Nowadays, such phenomena have extensively been studied due to its importance in many industrial fields. In this paper, the effects of surface wettability on finger pattern are studied and simulated numerically by the Lattice Boltzmann method (LBM). The displacement efficiency is investigated by using two parameters, namely, the breakthrough time and the areal sweep efficiency. The simulation has demonstrated that surface wettability will influence the finger pattern no matter the gravity is considered or not, but in the presence of gravity, the finger pattern is much more complicated and irregular due to the coexistence and competition of capillary force, viscous force and gravity.
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页码：267 / 275
页数：8
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