EPC School

When fluid flows past a thermowell inserted into a pipe or duct, vorticies form at both sides of the well. These vorticies detach, first from one side, and then from the other. This phenomenon is known as the Von
Karmann effect. The frequency of shedding of these vortices is a function of the diameter of the thermowell,
the fluid velocity and, to a lesser extent, the Reynolds number.