A three-layer Hele-Shaw problem driven by a sink.

The article in the Journal of Fluid Mechanics explores the dynamics of fluid flow in a three-layer Hele-Shaw problem driven by a sink. Using numerical methods, the study investigates the interaction between interfaces and the sink, leading to rich pattern formation phenomena. The research emphasizes the influence of parameters such as the width of the annular region, sink location, and fluid mobilities on the system's dynamics, with potential applications in fields like oil recovery and porous media flow. The document contains a collection of scientific research articles authored by a diverse group of researchers, offering valuable insights into complex fluid dynamics phenomena in Hele-Shaw cells, including bubble motion, finger selection in viscous fingering, and pattern formation. [Extracted from the article]