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CL420, CL442, CL443: Water Engineering 2
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When a channel geometry expands, we expect a steady flow to “X” and the flow velocity to “Y”:
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When a channel geometry contracts, we expect a steady flow to “X” and the flow velocity to “Y”:
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The total energy of flow in the channel is comprised of:
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Rapidly varied flow occurs when…..?
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What is Rapidly Varied Flow?
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As flow exits the flume the effect of gravity “X” and as such I would expect the flow to “Y” resulting in a “Z” in flow depth.
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If the flume material is a smooth construction of plastic and metal, I expect the Manning’s n roughness coefficients to be:
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As flow approaches an obstacle (e.g. a weir) I would expect it to gain potential energy and thus the depth to “X” and the velocity to “Y”. What are “X” and “Y”?
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Sub-critical Flows have a normal depth “X” than the critical depth of flow.
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Flumes act like a simply supported beam. This means that they will bend and deflect under loading. This deflection will impact:
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