Vortex flow meters are based on Karman's law which studies and codes the formation of vortices of moving fluids.
The vortices are caused by a suitable shaped body installed in the pipe; it is therefore a phenomenon generated by the fluid itself and is theoretically linear with the velocity of the fluid in turbulent motion (Re> 10000).
The Vortex flowmeter is suitable for liquids and gases in pipes of limited dimensions and is not suitable for viscous fluids for which filtering of the fluid is required.
