pro00052

pro00052 - HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY...

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Department of Civil Engineering CIVL 252 – Hydraulics Prof. Mohamed S. Ghidaoui Open Channel Problems-II 1. Water flows at a depth of 1.2m in a rectangular channel 2.7m wide. Over a smooth hump 200mm high a drop of 150mm in the water surface is observed. Neglecting frictional losses. Calculate the discharge Q. 2. For a given constant specific energy, E, in a rectangular channel carrying a flowrate per unit width q, determine the depth at which q is maximum and plot y versus q. 3. A hump of height a is constructed in the floor of a rectangular channel of width b and carrying a flowrate Q. Determine the width b’ of the channel at the location of the hump in terms of b, the upstream depth y and the height of the hump a so that the water level remains constant. (See figure below) 4. The gutter of a roadway is confined by a curb 0.15 m high. The cross-slope of the road is 30 to 1, as shown in the diagram below, and the roadway itself has a y' a b b'? y
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pro00052 - HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY...

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