Computer Engineering Commons^™

Bedform-Induced Hyporheic Exchange: Impact Of Porous Medium Permeability, Carto Gualtieri

International Congress on Environmental Modelling and Software

Stream and pore waters continuously interact and mix within streambeds due to spatial and temporal variations in channel characteristics. This mixing is termed hyporheic exchange and the zone where groundwater and stream water are mixing is called the hyporheic zone, which can greatly affect water quality in both surface and subsurface water systems.

The paper presents some results of a numerical study carried out to investigate the influence of porous medium permeability on hyporheic exchange. Laminar flow in the water column above triangular bedforms and Darcian flow in the underlying permeable sediments were considered. Numerical simulations were carried out in …