Simulation of the Influence of Surface Wettability on Viscous Fingering Phenomenon in Porous Media

作     者：B. Dong~1, Y. Y. Yan~2, W. Z. Li~1, Y. C. Song~1 1. Key Laboratory of Ocean Energy Utilization and Energy Conservation (Ministry of Education, China), Dalian University of Technology, Dalian 116024, P. R. China 2. Faculty of Engineering, University of Nottingham, University Park, NG7 2RD, UK 

作者机构：Key Laboratory of Ocean Energy Utilization and Energy Conservation (Ministry of Education China) Dalian University of Technology Dalian P. R. China Faculty of Engineering University of Nottingham University Park UK 

出 版 物：《Journal of Bionic Engineering》 (仿生工程学报（英文版）)

年 卷 期：2010年第7卷第3期

页      面：267-275页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the NSFC sponsored project under grant(50976017)(50736001) 

主　　题：immiscible fluids porous media viscous fingering wettability 

摘      要：Fingering phenomena are common occurrence in the natural world. It generally takes place when a less viscous fluid displacesa more viscous fluid typically in porous media. Nowadays, such phenomena have extensively been studied due to itsimportance in many industrial fields. In this paper, the effects of surface wettability on finger pattern are studied and simulatednumerically 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 willinfluence the finger pattern no matter the gravity is considered or not, but in the presence of gravity, the finger pattern is muchmore complicated and irregular due to the coexistence and competition of capillary force, viscous force and gravity.