Fluid Mechanics seventh edition by Frank M. White · Problem 3.13
Integral Relations for a Control Volume — Frank M. White
Physics — Fluid Mechanics · conservation-of-mass
Problem
The cylindrical container in Fig. P3.13 is 20 cm in diameter and has a conical contraction at the bottom with an exit hole 3 cm in diameter. The tank contains fresh water at standard sea-level conditions. If the water surface is falling at the nearly steady rate dh/dt≈−0.072 m/s, estimate the average velocity V out of the bottom exit.