【書報討論 2022/11/22】《第十五週》 場次一
講題：Numerical Investigation of Viscous Instability in a Hele-Shaw Cell and Capillary Tube
時間：2022/11/22 (周四) 3:30 pm - 5:30 pm
地點：工程五館 B1 國際會議廳
Viscous fingering is an interfacial fluid flow instability occurred when the less viscous fluid displaced to the higher viscous fluid in a Hele-Shaw cell. If two fluids are immiscible and the prominence of viscous fingering is mainly depended on dimensionless Capillary number (Ca), which is defined as the ratio of the viscous force to the interfacial tension, and viscosity contrast, often represented by the normalized Atwood number (A). Some recent studies of injection process control had been discussed to enhance the oil-recovery efficiency. Present study is an investigation of immiscible viscous fingering dynamics with different alternative injection process. Furthermore, the simulation results of the flow patterns are compared with the experimental results and shown good agreement.