ABSTRACT
ABSTRACT: A completely 3D numerical model, which solves 3D Reynolds’ equations and a bed load conservation equation based on a boundary-fitted orthogonal curvilinear coordinate system, is developed. The model is applied to simulate local flow and scouring around a bridge pier which consists of 6 cylindrical piles. The basic features of the local flow, as well as the special ones resulted from interaction of the piles, are captured. The computational maximum scouring depth and the local bed deformation are consistent with those reported in the literature.
