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Hydraulic Jumps on Adverse Slope in Two Cases of Rough and Smooth Bed
並列摘要
One of the most frequently encountered cases of rapid varied flow is the hydraulic jump. It occurs when a supercritical flow has to change into subcritical flow. Nowadays jump study upon sloping beds, especially adverse slopes, is important because of the length of jump and the energy loss. In this research jump study has been done upon four adverse slopes -0.00125, -0.0025, -0.00375 and -0.005 in two cases of rough and smooth bed. The results showed that the Sequent depth ratio and the length of jump upon smooth bed has been more than rough bed for the same slopes and Froude numbers. Also comparison with percentage of the energy loss, more energy loss has occurred upon rough bed than smooth bed.
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