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An Integrated Approach of Profi le Studies for Surface Water Velocity on a Steep Slope in a Rectangular Channel

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Ayalew A. T. , Koshuma A. E. , Ayele M. n. A. , Dirate D. D.

2022

tom Vol. 16, no 2

74--80

The flow velocity of water and its accurate surface profile estimation is important parameter as changes in climate increases the uneven rainfall patterns causing flood in downstream. It is important to know the velocity profile in steep open channel flows for solving the soil erosion, flooding and sediment transport problems in rivers or streams on steep slopes. A fixed bed laboratory experiment for a rectangular channel with steep slope is conducted to find the velocity profiles and surface profiles at different sections. Velocity profiles are presented at different sections in rectangular channel with steep slope. The outcome of the laboratory based experimental investigation shows that the velocity and surface profiles are influenced by the depth of flow of water and channel bed slope respectively.