Based on the largeeddy numerical simulation method,the flow properties around three kinds of spurdikes,i.e.,60° groyne,90° groyne and 120° groyne(the inclined angle representing an angle between the groyne with river bank),are studied.The basic equations for numerical simulation are the largeeddy simulation equations.The most widely used Smagorinsky model is adopted to represent the eddy viscosity coefficient in the subgridscale stresses.And then a numerical method is given.The computed results are detailedly verified by the experimental data.Finally,the velocily distributions around the three kinds of spurdikes are given and compared