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13 Cards in this Set
- Front
- Back
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Amount of energy used to overcome flow resistance |
96% |
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Open-channel flow |
Free surface subject to atmospheric pressure at boundary between water and atmosphere |
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Hydraulic radius |
Cross section area÷ wetted perimeter |
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Viscosity |
Resistance of fluid to deformation |
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Reynolds categories |
<500= laminar >2000= turbulent |
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Subcritical flow |
(tranquil) dominated by gravity. Deep, low gradient, low velocity |
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Supercritical flow |
(rapid) flow dominated by inertia. Shallow, high gradient, high velocity |
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Froude number |
Subcritical: <1 Supercritical: >1 |
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Hydraulic jumo |
Zone of transition from super to sub-critical flow |
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Roughness |
Amount of particles protruding above laminar sublayer |
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Continuity of flow |
Q entering = Q leaving |
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Magnitude of force driving flow |
Weight of water x sin slope angle Density x (hxwxd) x gravity |
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Stream power |
Energy exerted against channel bed |
