Abstract: A surge running down a dry wadi bed as a consequence of a controlled water release from a reservoir—e.g., for artificial groundwater recharge—represents a free boundary problem. After some time, when aiming for groundwater ...

Abstract: Surge flow phenomena, e.g., as a consequence of a dam failure or a flash flood, represent free boundary problems. The extending computational domain together with the discontinuities involved renders their numerical solution ...

Abstract: Physically based modeling of the coupled one-dimensional surface and two-dimensional (2D) subsurface flow during furrow irrigation advance often causes numerical instabilities and nonconvergence problems. This is particularly ...