01 / 6 · Practical Engineering
The turbulence of the hydraulic jump entrains a lot of air, reducing the buoyancy of a swimmer.
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Unlike friction or turbulence in the pipe, this doesn’t depend on flow.
Look at that turbulence back there.
So this was designed, Turbulence was bad.
It also drops steeply at sharp bends and valves which cause turbulence in the flow.
Any location with fast moving water and high turbulence can be dangerous to swimmers or kayakers, but the location of this hydraulic jump can turn a manageable risk into an almost surefire way to drown.
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