The passive control of flow past a semi-circular cylinder is carried out. This control is achieved by adding a porous layer between the solid obstacle and the incompressible uid. A vortex-penalization method is chosen to easily tackle the simulation of the flow in the diff erent media. Several con gurations of the porous layer are investigated in order to determine the most e cient passive flow control devices.
Passive flow control around a 2D semi-circular cylinder using porous media