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Water SA

versión On-line ISSN 1816-7950
versión impresa ISSN 0378-4738


MOHAMMADZADEH-HABILI, Jahanshir  y  HONAR, Tooraj. Theoretical solution for analysis and design of hydraulic jump on corrugated bed. Water SA [online]. 2018, vol.44, n.4, pp.647-652. ISSN 1816-7950.

A hydraulic jump mainly serves as an energy dissipator downstream of hydraulic structures. For analysis and design of a hydraulic jump on a corrugated bed, the specific energy curve was used: the maximum possible amount of energy dissipation of the hydraulic jump, the minimum possible value of sequent depth for the hydraulic jump, and efficiency of energy dissipation of a smooth hydraulic jump are theoretically related to the inflow Froude number. A wide range of existing experimental data from hydraulic jumps on smooth and corrugated beds was also used. Results of this study indicate that the energy dissipation of a hydraulic jump on a corrugated bed is mainly influenced by horizontal distance from the sluice gate section to the start point of the corrugated bed. To reach the maximum value of energy dissipation (i.e., minimum value of subcritical sequent depth) and the minimum value of jump length, the corrugated bed should start from the gate opening.

Palabras clave : hydraulic jump; corrugated bed; energy dissipation; specific energy curve; sluice gate.

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