1) Water flows through a 45 ft pipe with a 0.5 in diameter at a flow rate of 5 gpm. What facrtion of this pipe can be considered as an entrance region?
2) Carbon dioxide at 20 degrees C and a pressure of 575 kPa absolute flows in a pipe at a rate of 0.0041 kg/s. What is the maximum diameter if the developed flow is to be turbulent?