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Imperfect Circular Hydraulic Jump

Author(s): Alix T. Moncada M.; Julian Aguirre-Pe; Maria L. Olivero

Linked Author(s): Julián Aguirre Pe

Keywords: Hydraulic jump; Radial jump; Circular jump; Head loss; Dissipation ofenergy

Abstract: In the past, the hydraulic circular jump formed by the deflection of a jet on a perpendicular plane has been studied. Functional relationships for the sequent depth as a function of the Froude Number of the deflected jet and of the height of the retention wall have been obtained. The dissipation of energy has also been found. In this paper, a theoretical and experimental study on an imperfect circular hydraulic jump is carried out. This jump is formed for small radii and high heights of the retention wall. For these conditions, the upstream and downstream flows are not uniform anymore. A theoretical general equation, that allows to predict the dimensionless submergence depth as a function of five different parameters, was developed. An additional relationship to calculate the dissipation of energy, in the circular imperfect hydraulic jump, was obtained. Results of laboratory experiments, to verify the applicability of the theoretical analysis, are given.


Year: 1999

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