Title: Demonstration of an incompressible flow

Description: The continuity equation (nabla u = 0, or div u = 0) implies that a flow is incompressible. This condition usually applies to most liquids, such as water. This recording, done with a high-speed camera at 3000 fps, demonstrates this relationship using a simple liquid, a plastic cup and a large weight (with augmentation by Richard Strauss).

Credits: Delft University of Technology Laboratory for Aero & Hydrodynamics, The Netherlands

References:

Web Page: http://dutw1479.wbmt.tudelft.nl/webPE/Chairs/FM

Contributed By: Jerry Westerweel