Title: Pattern formation by oscillating flows

Description: A tube with a diffuser is partially submerged in a water tank. A piston, inside the tube, creates an oscillating flow. The curvature of the diffuser is such that no vortices are formed inside. A vortex is formed when the flow gets out of the diffuser and another when it goes in. The path that these vortices follow after the diffuser strongly depends on the amplitude and frequency of oscillation forming a large variety of flow patterns.

Credits: Centeno Sierra, Mariana; Martinez Farias, Francisco Javier; Hernandez Tahuilan, Jorge; Stern Forgach, Catalina

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Contributed By: Tausif Billah