Actual Discharge & Theoretical Discharge Thus the equation (vi) under ideal condition gives theoretical discharge Qt. The actual discharge is donated by Qa which is less than the theoretical discharge. Wherein this experiment the Qa (actual discharge) was denoted by the volume of water in the tank which was L by the time measure in seconds. Qa= Volume of water Time (ms) , Qt Theoritical discharge is measured by the following formula. Where his the difference in the height of the manometer readings A is the area of the inlet and A is the area of the outlet, g is acceleration due to gravity. By inserting all the values we get Qt (theoretical discharge, which varies with the change of the manometer height by changing the initial flow rate.
