CH ENGR 101A Quiz: 2017 Homework 2 Solutions
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In the region just downstream of a sluice gate, the water may develop a reverse flow region as it indicated in the figure: The velocity profile is assumed to consist of two uniform regions, one with velocity va=10fps and the other with vb=3fps. Determine the net flow rae of water across the portion of the control surface at section (2) if the channel is 20 ft wide. Water enters the bend of a river with the uniform velocity profile shown below: At the end of the bend there is a region of separation or reverse flow. Abcd coincides with the system at time t=0 . Make a sketch to indicate (a) the system at time t=5s and (b) the m, entered and exited the control volume in that time period. Water enters the horizontal, circular cross-sectional, sudden contraction nozzle at section (1) with a uniformly distributed velocity of 25 ft/s and a pressure of 75 psi.
