What is vortex shedding frequency?

Vortex shedding frequency is the frequency of the alternating vortices that are shed from an object due to a fluid flow around it. This phenomenon occurs when a fluid flows around an object, creating alternating low-pressure zones on either side of the object. As these zones switch back and forth, they create vortices that are shed from the object at a characteristic frequency.

The frequency of vortex shedding depends on various factors, such as the shape of the object, the size of the object, the speed and viscosity of the fluid, and the Reynolds number of the flow. In general, the frequency of vortex shedding increases with increasing fluid velocity and decreasing object size.

The vortex shedding frequency is an important parameter in various engineering applications, such as the design of structures exposed to fluid flows, flow measurement, and the study of fluid dynamics. Accurate prediction and control of vortex shedding frequency is important in minimizing damage to structures and optimizing their performance.