Experiment Study of Energy Dissipation of Flaring Pier-Falling Still Bottom-flow Plunge Pool
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Abstract:
The hydraulic model tests were performed to analyze and compare the flow patterns, bottom velocities, and fluctuating pressures in the flaring pier-falling still plunge pool and general falling-still plunge pool. The results showed that the new type of the energy dissipation can improve the flow pattern in the falling-still plunge pool, decrease the bottom velocity and the fluctuating pressure in the plunge pool, lower the length of plunge pool, alleviate the washout of downstream riverbed, and utilize the good energy dissipation rate of flaring pier to overcome the impact questions of jet flow of the flaring pier to the bottom surface of plunge pool. The new energy dissipation type can provide references for similar projects and enrich the types of flood discharge and energy dissipation.
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