Abstract: For transverse mixing problems in open channels, the effect of secondary currents on a tracer cloud is to disperse and mix the tracer in three dimensions more rapidly than would be the case if transverse turbulent diffusion ...

Abstract: Numerical issues for the friction-dominated steady-state Saint-Venant equations with a shock-capturing upwind finite-element scheme are studied using nonuniform-flow test cases and Fourier analysis. The friction-dominated ...

Abstract: A one-dimensional theoretical model for subcritical flows in combining open channel junctions is developed. Typical examples of these junctions are encountered in urban water treatment plants, irrigation and drainage canals, ...

Abstract: The hyporheic zone connects groundwater and surface water allowing active exchange of water and solute, and thus plays a vital role in many hydrological and ecological processes. Many sophisticated high-dimensional models ...