Water is siphoned from a large tank and discharges into the atmosphere through a 0.05 m diameter tube. The end of the tube is 0.9 m below the tank bottom, and the height of the tube is H= 2.0 m. (a) Determine the volume flowrate from the tank. (b) Determine the water pressure at the top of the tube. (Assume viscous effects are negligible)

2. Oil of specific gravity of 0.90 is discharging through a 100 mm circular sharp edge orifice in the end of a 120mm pipe. The pressure head on the center line of the pipe just upstream from the orifice is 9m of oil, and discharges takes place into a closed tank in which the vapor pressure is - 20 kPa. Use C = 0.68 and Cv = 0.97. Compute the discharge. 120 mm pipe P = - 20 kPa 100 mm orifice

SHOW SOlution Ans. F= 733.16kN 1.844m from the bottom of the tank parallel to the gate

A suspended gate that’s able to pivot from the top seperates two liquids. There is a stopper that prevents the gate opening anti-clockwise. The gate has a height of 0.5m. The liquid on the right is three times as dense as the liquid on the left. The liquid on the left has a depth of 0.3m. 1) What is the minimum depth of liquid on the right for the gate to open. 2) Comment on the ability to solve this question if the liquid on the left was 0.5m (filled to the top)