Three-dimensional non-hydrostatic model for dam-break flows

A three-dimensional (3D) non-hydrostatic model is presented for the simulation of dam-break flows. The solves Reynolds-averaged Navier–Stokes equations using projection method. 3D computational grids are constructed from a two-dimensional horizontal unstructured mesh by adding layers in vertical direction. Based on grid system, advection terms discretized momentum conservative scheme. proposed validated with several physical experiments. agreement between results and experimental data generally good, which demonstrates capability to resolve flows over flat uneven bottoms complex geometries. Moreover, efficiency evaluated flow Comparisons corresponding quasi-3D shallow water also performed, confirm role effects