Abstract
The present study aims to evaluate characteristics of the hydraulic jump formed in a circular stilling basin with baffle blocks. Baffle blocks improve performance of the hydraulic jump and stabilize its position in the basin. In addition to experimental modeling, theoretical relationships were derived to determine the sequent depth ratio and the relative energy loss in circular stilling basins with baffle blocks, deriving a relationship for estimating the force imposed by the blocks. Based on the results of the present study, baffle blocks in a stilling basin improve the characteristics of a circular hydraulic jump such as the sequent depth ratio and relative energy loss. Furthermore, increasing the obstruction ratio and the sequent radius ratio decrease the sequent depth ratio. Furthermore, an increase in the sequent radius ratio led to an increase in the relative energy loss. Also, the results show that the relative length of a circular hydraulic jump is significantly smaller than that of the classical hydraulic jump (CHJ). Error analysis on the measured data and the developed theoretical relationships indicated that the theoretically obtained results compare well with the present experimental data.
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