Abstract
We consider transient free surface flows near a contact point between a body and the free surface and discuss its treatment for numerical simulation of their interactions. The Boundary Element Method is employed and we investigate whether the simulation of unsteady free surface flow due to the abraptly starting motion of a body is practically possible or not. Numerical studies on body shapes with no curvature are carried out. Introducing the modeling of jet flow near the body, we can simulate free surface flows in a wide range of Froude numbers.