Q3 Hydraulic flow routing in an open channel is performed using the unsteady gradually varied flow concept. Answer the f

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Q3 Hydraulic Flow Routing In An Open Channel Is Performed Using The Unsteady Gradually Varied Flow Concept Answer The F 1 (67.17 KiB) Viewed 26 times

Q3 Hydraulic flow routing in an open channel is performed using the unsteady gradually varied flow concept. Answer the following questions: (a) State the difference between steady and unsteady gradually varied flow in an open channel. You may illustrate your answers by appropriate figures and symbols of ordinary and partial differences. (4 marks) (b) (i) Sketch the pattern of the flow hydrograph (discharge versus time and flow depth versus time) along the channel that illustrate the expected results of hydraulic flow routing. (ii) Suggest the importance of the hydrographs. (d) (4 marks) (c) (i) Sketch a complete x-t grid system to illustrate the computation idea of the explicit scheme finite difference solution for the governing equations. Show the points of interest, i.e. point P, L, M and R. (ii) Design a complete computations table that can be used in the computations of hydraulic flow routing in an open channel. Show the appropriate headings. Pick a cell in your computations table as point P and show where are points vp, yp, VL, YL, VR, YR, VM and yM are located. (6 marks) Design and draw a complete general flow chart that illustrates the computations process of hydraulic flow routing in an open channel. (6 marks) (20 marks)