4 A 3 Marks Explain What Is Meant By The Specinc Energy Of Flow In An Open Channel And Illustrate Your Answer With A 1 (45.08 KiB) Viewed 34 times
4 A 3 Marks Explain What Is Meant By The Specinc Energy Of Flow In An Open Channel And Illustrate Your Answer With A 2 (45.08 KiB) Viewed 34 times
4. a) (3 marks) Explain what is meant by the Specinc Energy of flow in an open channel and illustrate your answer with appropriate equations and graphs. marks) b) Explain the Froude number and its importance in relation to hydraulic Jumps c) A flow discharge of 35 m's is measured in a rectangular concrete channel 4 m wide with a flow dopth of 3.1 m. Given the channel bod slope is 1 marks) (3 marks) 1. Determine the Manning's roughness coefficient for the channel. I. It is decided to replace the above channel with a trapezoidal channel with 45° side slopes. The concrete finish will be the same. Calculate the profile of the most economic section for the above discharge rate given the following equation: b+22y = 2yVi+r d) A vertical sluice gate with an opening of 0.67 m produces a downstream jet depth of 0.4 m when installed in a long rectangular channel 5.0 m wide conveying a steady discharge of 20 mº/s. Assuming that the flow downstream of the gate eventually return to the uniform flow depth of 25 m. Verify that a hydraulic jump occurs. (10 marks) (5 marks) IL Calculate the head loss in the jump You are given the following relationships v Fr= > 6.-) E- wy.
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!
marks) (3 marks) 1. Determine the Manning's roughness coefficient for the channel. I. It is decided to replace the above channel with a trapezoidal channel with 45° side slopes. The concrete finish will be the same. Calculate the profile of the most economic section for the above discharge rate given the following equation: b+22y = 2yVi+r d) A vertical sluice gate with an opening of 0.67 m produces a downstream jet depth of 0.4 m when installed in a long rectangular channel 5.0 m wide conveying a steady discharge of 20 mº/s. Assuming that the flow downstream of the gate eventually return to the uniform flow depth of 25 m. Verify that a hydraulic jump occurs. (10 marks) (5 marks) IL Calculate the head loss in the jump You are given the following relationships v Fr= > 6.-) E- wy.