抄録
Particle dispersion at a right-angled open-channel confluence is simulated by a two-dimensional discrete vortex method. Particle movements due to the unsteady motion of a separation bubble at a confluence are calculated by successively introducing neutral markers at arbitrary points or points in a line and by tracing them. Calculated results concerning a concentration of particles downstream from a point source or the size of a mixing region show favorable agreements with the experiments executed on the surface-flow at the confluence.
