Flood Wave Modeling Based on a Two-Dimensional Modified Wave Propagation Algorithm Coupled to a Full-Pipe Network Solver

摘要: Flood propagation over urban areas can cause an interaction between the free-surface flow and large underground pipe networks used for sewage storm drainage, causing outflows inflows at bed. The waves resulting from these bed discharges may collide with each other surface waves, increasing water depths, velocities accelerations, their thus affects flood risk. authors previously introduced a one-dimensional (1D) shallow-water model simulating flows issuing vertically through finite gaps, referred to as efflux. This modified wave algorithm was validated by comparing results full Navier-Stokes equation solver (STAR-CD) based on volume-of-fluid method, which models motion quite generally, although considerable computational expense. present paper extends scheme two dimensions, including source terms outflow/inflow (efflux/influx) ...