Question

From a given prismatic reservoir the discharge from an orifice at the base would be 30 cu.ft. in “t” seconds if the head were constant at 16 ft. Under a falling head, starting at 25 ft, how much must it fall during the same time, “t”, so that the discharge during that time shall also be 35 cu. Ft., assuming the coefficient of discharge constant?

What is the area of the vessel in square feet?

If Cd = 0.85 and t = 45 seconds, what would be the area of the orifice in square feet?

Answer 1