The flow in the annulus between a rotating inner cylinder and a fixed outer cylinder, known as Taylor Couette flow, is a rich dynamical system. Our work covers a broad range of topics including the velocity field, stability, and chaos. An important application of Taylor Couette flow is dynamic filtration, which can be used to process blood and recycle wastewater for manned space flight. The image at left shows the experimentally-measured velocity field in wavy vortex flow. See publications here.