10.18 A channel has a rectangular cross section, a width of 40 m, and a flow rate of 4000 m3 /s. The normal water depth is 20 m. The flow then encounters a 4.0-m-high dam. Find the water depth directly above the dam if the flow is critical. Assume frictionless flow. Gerhart, Philip M.; Gerhart, Andrew L.; Hochstein, John I.. Munson, Young and Okiishi's Fundamentals of Fluid Mechanics, 8th Edition (p. 597). Wiley. Kindle Edition.

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor