This video provides an opportunity to “see” groundwater flow by using a Hele-Shaw cell. The Hele-Shaw cell consists of two parallel transparent walls with a small gap between them that is filled with a viscous liquid that moves in response to a pressure difference along the plates. The pattern of flow between the walls of the cell is equivalent to groundwater flow in a plane. This video shows the groundwater flow pattern resulting from recharge at the top of a ridge discharging to a water body on the right side. Midway through the video, the right side is blocked and the left side is opened so the transient shift of the flow lines can be observed.
The video was created by JJ Jiao and WZ Liang at the University of Hong Kong, Pokfulam, Hong Kong and is part of the supplemental material to the book Graphical Construction of Groundwater Flow Nets by Eileen Poeter and Paul Hsieh. This book is published by The Groundwater Project and can be downloaded at no cost by visiting [ Ссылка ].
The mission of The Groundwater Project is to provide accessible, engaging, high-quality, educational materials, free-of-charge online in many languages, to all who want to learn about groundwater and understand how groundwater relates to and sustains ecological systems and humanity . Learn more about the Project at [ Ссылка ].
