Nature is full of cilia, hairs, and similar flexible structures. Unsurprisingly, flows interact with these structures very differently than with smooth surfaces. Here, researchers investigate flow in a channel lined Keep reading
Tag: channel flow
Hydraulic Jumps
Chances are that you’ve seen plenty of hydraulic jumps in your life, whether they were in your kitchen sink, the whitewater of a river, or at the bottom of a Keep reading
Structures in Turbulence
Despite its appearance, there is order in the chaos of turbulence. These snapshots from a turbulent channel flow simulation outline these coherent structures in black. The top photo shows a Keep reading
Vortex Street Sim
This numerical simulation shows a von Karman vortex street in the wake of a bluff body. As flow moves over the object, vortices are periodically shed off the object’s upper Keep reading
River Jumps
Hydraulic jumps occur when a high velocity liquid runs into an area of low velocity liquid. The faster moving liquid decelerates rapidly and increases in height, effectively trading kinetic energy Keep reading