The paper reports the development and application of the SPHERA code (SPH based) towards the simulation of the local scouring problems induced by fluvial structures. The study is motivated by the traditional difficulties of SPH approaches to mimic the sediment transport and local scouring downstream a barrage. In the frame of the Italian Energetic System Research Projects a work devoted to develop innovative numerical models, based both on a classic CFD and on a new SPH approaches, has been carried out with the goal of improving the accuracy of the results and to support very detailed analyses. The paper shows the application of the two models to simulate the local scouring effects induced by a barrage, comparing the accuracy of the results with experimental measurements and discussing advantages and limits of each model. The results allow to conclude that both the CFD model and SPH innovative model can be applied successfully to investigate local scouring problems when fixed structures are involved and they can be used in conjunction with the physical models to investigate safety aspect and to support optimization design of fluvial structures.
Use of SPHERA Code To Investigate Local ScouringEffects Induced By Fluvial Structures Downstream aBarrage
MANENTI, SAURO;SIBILLA, STEFANO;GALLATI, MARIO
2012-01-01
Abstract
The paper reports the development and application of the SPHERA code (SPH based) towards the simulation of the local scouring problems induced by fluvial structures. The study is motivated by the traditional difficulties of SPH approaches to mimic the sediment transport and local scouring downstream a barrage. In the frame of the Italian Energetic System Research Projects a work devoted to develop innovative numerical models, based both on a classic CFD and on a new SPH approaches, has been carried out with the goal of improving the accuracy of the results and to support very detailed analyses. The paper shows the application of the two models to simulate the local scouring effects induced by a barrage, comparing the accuracy of the results with experimental measurements and discussing advantages and limits of each model. The results allow to conclude that both the CFD model and SPH innovative model can be applied successfully to investigate local scouring problems when fixed structures are involved and they can be used in conjunction with the physical models to investigate safety aspect and to support optimization design of fluvial structures.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
