The modelling of submerged vanes: A means of fairway improvement in river bends

Recently submerged vanes have come to the attention of Rijkswaterstaat as an option to ensure a sufficient navigable width and depth for some bends in the main Dutch rivers. The submerged vanes can counteract the spiral flow, thus reducing the typical lateral bed slope in river bends. Model calculations by Delft Hydraulics and Haskoning...