22. Non-Uniform Flow and Hydraulic Jump (Contd.)
This chapter delves into the intricacies of hydraulic jumps and their implications in hydraulic engineering. It explores the calculations for determining depths, velocities, and energy losses during hydraulic jumps using Froude numbers. A systematic approach to problem-solving is demonstrated through multiple examples that highlight the practical applications of these principles in real-world scenarios.
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Sections
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What we have learnt
- Hydraulic jumps transform supercritical flow into subcritical flow.
- Energy loss during hydraulic jumps can be quantified using specific equations.
- Understanding Froude number is critical in predicting flow conditions before and after a jump.
Key Concepts
- -- Froude Number
- A dimensionless parameter that helps determine flow regime; critical for identifying supercritical and subcritical flows.
- -- Energy Loss
- The loss of mechanical energy associated with changes in flow depth and velocity during hydraulic jumps, calculable via various equations.
- -- Hydraulic Jump
- A phenomenon where water abruptly changes from a supercritical to a subcritical flow state, resulting in a sudden rise in water surface height.
- -- Specific Energy
- The total mechanical energy (potential + kinetic) per unit weight of fluid, crucial for analyzing flow in open channels.
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