Draw the energy line and hydraulic grade line for the flow shown in Problem 3.77.

Problem 3.77

Water flows steadily with negligible viscous effects through the pipe shown in Fig. P3.77. It is known that the 4-in.-diameter section of thin-walled tubing will collapse if the pressure within it becomes less than 10 psi below atmospheric pressure. Determine the maximum value that \(h\) can have without causing collapse of the tubing.

Figure P3.77

Transcribed Image Text:

4 ft 4-in.-diameter thin-walled tubing h 6 in.