Halliday, Resnick & Walker — Fluids: Problem Problem_66

Consider the venturi tube of Problem 65 and Fig. 14.30 without the manometer. Let \(A\) equal \(5a\). Suppose the pressure \(p_1\) at \(A\) is \(2.0 \text{ atm}\). Compute the values of (a) the speed \(V\) at \(A\) and (b) the speed \(v\) at \(a\) that make the pressure \(p_2\) at \(a\) equal to zero. (c) Compute the corresponding volume flow rate if the diameter at \(A\) is \(5.0 \text{ cm}\). The phenomenon that occurs at \(a\) when \(p_2\) falls to nearly zero is known as cavitation. The water vaporizes into small bubbles.