STUDY OF END WEIR USING HEC-RAS OF GUNJWANI DAM SPILLWAY
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Abstract
Hydraulic jump is the phenomenon in which the flow changes from superundal flow to subundal flow. The hydraulic jump concept is widely used in any hydraulic structures for energy dissipater at d/s side of the hydraulic structures. Hence Study of hydraulic jump is very important in such field. The HEC-RAS software is used to simulate the flow over ogee spillway. This software is used to determine the location of hydraulic jump and the nature of corresponding water surface profile. Results obtained from the HEC-RAS software are compared with theExperimental results. The Height of Ogee spillway of Gunjawani Dam is 22.76m and width of spillway 27 m.Design Discharge is 1280.03m3/s and Length of stilling basin is 52m.Top width of end weir is 0.6 m, height is 4m and bottom width is 2.6m. This research is useful for checking the feasibility of HEC-RAS software for prediction of location of hydraulic jump and to observe the features of channel flow.
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