Vortex shedding can be used to design a vortex flowmeter (Fig. 6.33). A blunt rod stretched across the pipe sheds vortices whose frequency is read by the sensor downstream. Suppose the pipe diameter is 5 cm and the rod is a cylinder of diameter 8 mm. If the sensor reads 5400 counts per minute, estimate the volume flow rate of water in m3 /h. How might the meter react to other liquids?
