Riprap drifting is a problem encountered frequently in the actual projects of river channel regulation, bank protection, submerged spur dike construction and pier scour protection. A particle laden flow numerical model is built by coupling computational fluid dynamics (CFD) and discrete element method (DEM) to analyze the drifting of riprap particle in water flow. Comparisons are carried out with experimental results of physical model to verify the numerical model. In order to investigate the effect of gradation on the drifting of rock group in...
