抄録
Supercritical flows sometimes occur during floods and shock waves can be easily found on the both sides of the pier. In order to know the influences of this type flow toward a pier, it is necessary to study on a flow around a circular cylinder in a supercritical flow. In this study we carried out experiments on a flow around a circular cylinder with the Froudc number of 1.98 and 2.06. Numerical simulations also were performed by using a shallow water flow equation in which the SGS effect is taken into account. As a result, the results of the numerical simulations agreed with those of the experiments, for example, Mach angle of shock waves and the intensified velocities behind shock waves.
