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

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

D2 Wats Water

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