A cylindrical tank having a diameter of 1.5 m and a height of 4 m is open at one end and close at the other end. It is placed below the water surface with its open end down. How deep below the water surface should the tank be placed if the depth of the water inside the tank is 1.8 m?

What is pipe roughness? A pump is located 5 m above the surface = 8170 M/m¹) in a closed tank. The pressure in the space above liquid surface is 35 Kpa. The suction line to the pump is 15 m of 15 cm diameter pipe (/= 0.025). The discharge from the pump is 60 m of 20 cm diameter pipe (/= 0.03). The pipe discharges in a submerged fashion to an open tank whose free liquid surface is 3 m lower than the liquid surface in the pressure tank. If pump puts 1.5 kW Into the liquid, determine the flow rate and the pressure in the pipe on the suction side of the pump. Assume turbulent flow.

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

A cylindrical tank of water is 20 m in diameter and 3.5 m tall. There is a 1.0 cm diameter hole at the bottom from which water is leaking. A feeder pipe at the top of the tank, 4.0 m above the ground delivers water at a rate of 0.02 m/min. Ir the tank is initially half full, tal what is the water flow rate in m^3/sec from the top feeder pipe? (bi what is the pressure at the bottom of the tank? (Hint: Bernoul's principle) () what is the water speed at the bottom? (d) what is the leaking flow rate at the bottom? fe) at what rate is the volume of water changing? (Assume the tank is open to air at the top)