The apparatus is for the study of flow over a notched weir. It is to be used with Hydraulics Bench i.e. HB100 or HB100N (separately supplied).
Three weir plates, a rectangular notch and two V notches, are provided. Characteristics of flow over the notches can be observed and coefficients of discharge can be determined. The plates are attached to the open channel of the Hydraulics Bench. Water is supplied to the channel via a discharge diffuser and passes through a stilling baffle to smooth the flow. A vernier hook and point gauge is provided to measure the height of water level in the channel.