A hydraulic jump in an open channel is characterized by a change from:
Correct answer: A. Supercritical flow to subcritical flow
- A. Supercritical flow to subcritical flow
- B. Subcritical flow to supercritical flow
- C. Uniform flow to laminar flow
- D. Laminar flow to uniform flow
Explanation
A hydraulic jump rapidly changes shallow, fast supercritical flow into deeper, slower subcritical flow. It causes substantial turbulence and dissipates mechanical energy.
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About Hydraulics and Water Resources
Hydraulics studies fluid properties, pressure, buoyancy, continuity, Bernoulli's equation, momentum, pipe flow, open-channel flow and hydraulic machines. Water resources extends these principles to pumps, turbines, reservoirs, irrigation, floods and hydrology, while distinguishing laminar from turbulent flow and uniform from gradually varied channel flow.
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