ABSTRACT

This project investigates how different factors such as weir shapes, channel slopes, and channel roughness affect the behaviour of hydraulic jumps. Hydraulic jumps are crucial in hydraulic engineering, influencing the design of structures and water management practices.

 The study conducts laboratory experiments with various weir shapes including rectangular, trapezoidal, and V-shaped weirs, channel slopesfrom 1% to 5%, to analyse their effects on hydraulic jumps. The findings aim to enhance understanding and optimize open-channel flow systems, contributing to more efficient and sustainable water management practices.

From the analysis it was seen that the triangular weir shape had more energy loss with a percentage of 72% compared to rectangular and trapezoidal weir shape with a percentage of 84%  at 2% slope. From the result, increase in the slope from 2-5% lead to decrease in the energy loss percentage for each weirs.The combined effect of different slope with different weirs resulted in more energy loss with percentage of 56% in the triangle weirs at 4% slope.