Chapter 14, Problem 66P

Consider the venturi tube of Problem 65 and Fig. 14-50 without the manometer. Let A equal 5a. Suppose the pressure p₁ at A is 2.0 atm. Compute the values of (a) the speed V at A and (b) the speed v at a that make the pressure p₂ at a equal to zero. (c) Compute the corresponding volume flow rate if the diameter at A is 5.0 cm. The phenomenon that occurs at a when p₂ falls to nearly zero is known as cavitation. The water vaporizes into small bubbles.

Figure 14-50 Problems 65 and 66.