ON LIQUID CONSUMPTION COEFFICIENT ON WATERFALL WITH A THIN WALL
The classic thin-walled weir flow rate formula can be derived in different ways. At the same time, it is not possible to obtain an expression for the flow rate with all the parameters that determine its value. The article presents the derivation of the formula for the liquid flow rate at a weir with a thin wall using the Bernoulli equation. In the process of derivation, a formula for the discharge coefficient was obtained, which includes the pressure on the weir, the height of the weir wall, the coefficient of local resistance, as well as the speed of the flow approaching the weir.