Author(s): Olivier Eiff; Victor Dupuis; Michele Trevisson
Linked Author(s): Michele Trevisson, Olivier Eiff
Keywords: Compound channel flows; Canopy patch; Porous obstacle
Abstract: A canopy patch is an isolated group of solid elements in a flow. Such groups of elements are encountered for example as vegetation growing on a river bed, or as a group of trees or of buildings in atmospheric flows. Until now the patch elements that were used in laboratory studies for modelling vegetation were mostly circular cylinders (e.g. Taddei et al., 2016). These elements are bluff bodies, which exert important drag on the flow and induce turbulence production. However, vegetation patches are composed partly of leaves or blades, which depart significantly from the circular cylinder form. In view of these limitations relative to the bluff body based patch, the present study aims at investigating an alternative canopy patch made of streamwise-oriented plates.
Year: 2025