Application of a moving contact model for run-up waves to urban flooding process

Abstract

 This paper presents the boundary condition model, based on empirical contact angle model, for free-surfaces on moving contact lines of run-up waves. The inundation process on an urban topographic model composed of streets and impermeable blocks, which models urban floods observed in Kamaishi city affected by the 2011 Tohoku tsunami, was computed in this study. We find unsteady bores are consecutively formed under steady overflows from a tide wall and propagate along streets, which causes unsteady wave forces on urban buildings for long time.