(a) Define the term ?Specific Energy? in an open channel section, and how does it vary with...
Question:
(a) Define the term ?Specific Energy? in an open channel section, and how does it vary with the flow depth at a constant flow rate?(b) For a given flow rate, show that the specific energy is a minimum when (Q2w/gA3) =1, where w= water surface width and A= cross-sectional area of water in the channel.(c) A rectangular channel with a horizontal bed carries a discharge of 20m3/s at a flow depth of Y1=3m (Figure 3). Calculate the depth of flow Y2 in a section of the channel in which the bed is raised by ?z equal to 0.7m. Assume a smooth transition with no frictional losses and critical conditions at the raised bed section.Figure 3
Chemistry The Central Science
ISBN: 978-0321696724
12th edition
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward