A ‘bathtub drain vortex’ forms when two water bottles are connected vertically. The surface of the vortex is visualized by red lamp oil. May 22, 2015FlowVis@CU …
Food dye emulsified in oil is pulled to the center of a vertical vortex. February 3, 2015FlowVis@CU …
Dye dropped onto a drain vortex in a 2 liter bottle forms cylindrical curtains September 24, 2014FlowVis@CU …
A “bathtub vortex” is created by taping two bottles together. Air moving up the inside of the vortex allows water to spin smoothly down. January 24, 2014FlowVis@CU …
