A necked-down section in a pipe flow, called a venturi, develops a low throat pressure which can

Question:

A necked-down section in a pipe flow, called a venturi, develops a low throat pressure which can aspirate fluid upward from a reservoir, as in Fig. P3.161 Using Bernoulli€™s equation with no losses, derive an expression for the velocity V1 which is just sufficient to bring reservoir fluid into the throat.

A necked-down section in a pipe flow