Abstract
An open channel flow with submerged rubble mound groin was analyzed by developing a two-dimensional numerical model. The computational domain in the analysis was divided into two regions, i.e. (1) a single-phase open channel flow and (2) a liquid-solid-phase flow consisting of an upper layer over a rubble mound groin and a porous media flow in the groin. In both the regions the system was modeled to be a two-layer system. Momentumn and mass exhange through the interface was considered. The numerical model was tested through comparison with a laboratory data and good agreement between them was obtained.
