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Posted: **Wed Apr 27, 2022 2:50 pm**

: 5 Marks 3 A Explain The Following Open Channel Flow Terms 1 Steady And Unsteady Flow 2 Uniform And Variable Flow 1 (68.69 KiB) Viewed 32 times

: 5 Marks 3 A Explain The Following Open Channel Flow Terms 1 Steady And Unsteady Flow 2 Uniform And Variable Flow 2 (68.69 KiB) Viewed 32 times

: 5 Marks 3 A Explain The Following Open Channel Flow Terms 1 Steady And Unsteady Flow 2 Uniform And Variable Flow 3 (68.69 KiB) Viewed 32 times

(5 marks) 3. a) Explain the following open channel flow terms: 1) Steady and unsteady flow; 2) Uniform and variable flow; 3) Prismatic and non-prismatic channels. b) A4 m wide steep spillway of rectangular cross-section discharges into a channel of similar cross-section but having a mild slope. Parameters of the two channels are shown in Table 3.1 below. Table 3.1 Steep channel Mild channel Slopu 1 in 30 1 in 850 Manning's n 0.015 0.015 I. II. III. Calculate the flow rate if the depth in the steep channel is (10 marks) 0.8 m Confirm that the flow in the steep channel is supercritical (5 marks) Calculate the depth and velocity of flow after the hydraulic (5 marks) jump Total marks for Question 3: 25 marks