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Hydraulic jump
Hydraulic Jump A hydraulic jump is a significant disturbance in a fluid flow that involves a significant change in the flow properties, including velocit...
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Hydraulic Jump A hydraulic jump is a significant disturbance in a fluid flow that involves a significant change in the flow properties, including velocit...
A hydraulic jump is a significant disturbance in a fluid flow that involves a significant change in the flow properties, including velocity and pressure. These jumps are often associated with turbulent flow patterns and can have a significant impact on the downstream flow behavior.
Characteristics of a Hydraulic Jump:
A sudden increase in velocity and pressure, compared to the upstream conditions.
A sharp decrease in flow depth.
The jump is characterized by a strong shear stress between the upstream and downstream regions.
The jump height depends on the velocity and density differences between the upstream and downstream regions.
Hydraulic jumps are often seen in turbulent boundary layers or flows over slopes.
They are a major source of Reynolds stress and can influence the downstream turbulence level.
Examples:
A water jump upstream of a dam, where the water level drops due to the dam's weight.
A jump in an air flow created by an aircraft wing.
The formation of a wall jump in a pipe due to a sudden change in diameter