Scour around non-circular cylinders has seldom been studied before. This paper aims to numerically investigate the flow behaviour and evolution of local scour two single square-shaped piers with 90 ° (square pier) 45 (diamond orientation angles under steady-current live-bed conditions. For this purpose, a coupled approach between hydrodynamic morphodynamic model is developed validated against e...

The migration of a waved-shape accumulation ice particles under an cover (referred to as “ice wave” in this study) is phenomenon transport during process rivers. wave will affect the pier scour. On other hand, local scour at waves. interaction between waves and around very complicated since not only channel bed deforms, but also jam develops simultaneously. By conducting series flume experiment...

River bridge piers may collapse due to the local scour around their foundations. It is known that an effect of three-dimensional flow field develops near pier and geometric complexity a non-cylindrical may, correspondingly, increase process. also various devices be used as countermeasures. This manuscript explores use bed sill countermeasure for at complex compound array piles, pile cap, two in...

introduction: bridges are certainly one of the most important structures but costly service elements in a transport system. the bridges are very required to access the damaged areas in emergency situations such as floods and earthquakes. scour around the foundations of bridge piers exposed to the flowing water than can destroy the bridge itself is a subject of major concern. flow pattern is kno...