The application of a 2-D pseudo-compressible XSPH scheme to the analysis of hydraulic jumps is discussed. The effect of velocity smoothing procedures of SPH schemes and of turbulence modelling on the solution is analysed. The numerical model is then applied to the simulation of an undular jump at Fr=8.3 generated in a very large channel of the Coastal Engineering Laboratory of the Water Engineering and Chemistry Department at Politecnico di Bari. The study makes particular reference to the velocity and free surface profile measured in the longitudinal central section of the channel, with the aim of analysing the hydraulic jump development. The agreement between the numerical results and laboratory measurements is satisfactory.
SPH modelling of hydraulic jump with high inflow Froude number
SIBILLA, STEFANO;TORTI, EMANUELA
2010-01-01
Abstract
The application of a 2-D pseudo-compressible XSPH scheme to the analysis of hydraulic jumps is discussed. The effect of velocity smoothing procedures of SPH schemes and of turbulence modelling on the solution is analysed. The numerical model is then applied to the simulation of an undular jump at Fr=8.3 generated in a very large channel of the Coastal Engineering Laboratory of the Water Engineering and Chemistry Department at Politecnico di Bari. The study makes particular reference to the velocity and free surface profile measured in the longitudinal central section of the channel, with the aim of analysing the hydraulic jump development. The agreement between the numerical results and laboratory measurements is satisfactory.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
