Fluid Mechanics seventh edition by Frank M. White · Problem 3.11
Integral Relations for a Control Volume — Frank M. White
Physics — Fluid Mechanics · conservation-of-mass
Problem
The inlet section of a vacuum cleaner is a rectangle, 1 in by 5 in. The blower is able to provide suction at 25 cubic feet per minute. (a) What is the average velocity at the inlet, in m/s? (b) If conditions are sea level standard, what is the mass flow of air, in kg/s?