In this study, the basic factors that affect the length (Lj) and roller length (Lr) of the hydraulic jump were investigated by a physical trapezoidal channel's model. The experiment carried out in purpose to establish a new empirical equation for calculating the roller length (...
Scope and Background: Dissipating high kinetic energy of supercritical flows to protect downstream structures has always been a concern of hydraulic structure engineers. One of the approaches to tackle this problem is the utilization of hydraulic jump phenomena in which a great amount of kinetic energ...
Nowadays, the porous screens have been used extensively in open channels to prevent erosion in ditches as the water in supercritical state flows past the screen which forces the formation of a hydraulic jump upstream of the screen and produces significant energy loss. In this investigation, the ...
This study aims to investigate the threshold-controlled hydraulic jump, moving in channel profile 'U' fully rough for a single roughness value e = 7,14 mm. Functional relations in dimensionless terms, linking the different characteristics of the jump, showing the effect of bottom friction channel...
This study aims to examine and analyze the experimental approach of controlled hydraulic jump threshold, moving in a channel profile 'U' bottom rough, linking the different characteristics of projection, showing the effect of roughness of the bottom....
Experimental study of hydraulic jump properties with optical probesMurzyn, FMouazé, DChaplin, J R
The corresponding inflow Froude number is allowed to range in the interval (1.40 5, the hydraulic jump is found to be more effective than that occurring in triangular and symmetric trapezoidal channels. Also, when [ Lr/(h2-h1)s] mes > 8 and Lr/h2 > 5, the hydraulic jump in the ...
Very limited studies have been reported in literature on the performance of the behavior of hydraulic jump, only for smooth and rough horizontal channel beds. This study attempts to investigate the characteristics of hydraulic jumps formed on rough sloping channel beds under different flow conditions ...
The location of the jump downstream the hydraulic structures outlets is an important parameter taken into considerations within the construction of the downstream protection works. One of the ways of moving the jump into a closer distance from the outlets is to raise the tail water level. In ...
This technical paper presents the theoretical study of hydraulic jump in circular channel section. Presuming the jump as one-dimensional free shear layer with hydrostatic pressure distribution across it, specific force equation is obtained. Using this equation and eddy viscosity closure hypothesis, ...