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- W3215723972 abstract "Fluctuating pressure is the main cause of the floor fatigue of the stilling basin with a negative step. Despite investigations of stilling basin with a negative step conducted by many researchers, there is not enough information about the influence of the geometric parameters on fluctuating pressure on the floor. In the present study, fluctuating pressure on the floor of the stilling basin with a negative step was systematically investigated by a total of 85 model tests. The results show that the fluctuating pressure coefficient Cp’ has a process of rapid increase and decrease, and then decreases slowly until it becomes stable, and the maximum fluctuating pressure coefficient Cp’max lies in the reattachment zone rather than in the jet impingement area for Type II-jump. The dominant frequency of the fluctuating pressure on the floor shows a decreasing trend along stilling basin. With the increase of the step height, the Cp’max presents decreasing trend but X*0 where the Cp’max occurs increasing trend. While there has on obvious regularity between incident angle and Cp’. Finally, according to the fitting of test data, an empirical formula to calculate Cp’max is developed. These research results provide reference for the design of stilling basin with a negative step in engineering applications." @default.
- W3215723972 created "2021-12-06" @default.
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- W3215723972 date "2021-11-18" @default.
- W3215723972 modified "2023-10-16" @default.
- W3215723972 title "Pressure Fluctuations Characteristics of the Stilling Basin with a Negative Step" @default.
- W3215723972 doi "https://doi.org/10.3233/atde210196" @default.
- W3215723972 hasPublicationYear "2021" @default.
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