Question: A fluid with viscosity of 100 CP and density 77.5 lbm/ft3 is flowing through a 100 ft length of vertical pipe (Schedule 40 steel). If the pressure at the bottom of the pipe is 20 psi greater than at the top, what is the mass flow rate?
2. Water at 60°F is flowing from a very large constant head reservoir to an irrigation ditch through a 1-1/2411. Schedule 40 cast iron pipe as shown below. All elbows are 900 standard elbows. Find the water flow rate in gallons per minute.