In this example, a cylinder with a radius of 10 cm is placed in a fluid flowing at 1 m/s. A solid vane attached at its leading edge to an energy harvesting device downstream of the cylinder interacts with the shedding vortex. The vane oscillates as the fluid passes over the vane, and energy is transferred into the device.

This configuration was modeled using a CFD code to examine the transient flow of liquid around the cylinder, as well as the coupled interaction between the fluid and the moving vane downstream of the cylinder. The animation above shows the fluid movement and the vane movement as a function of time.