Application of a Vortex Penalization Method in Solid-Porous-Fluid Media to Passive Flow Control

Chloé Mimeau (1) , Iraj Mortazavi (2) , Georges-Henri Cottet (1)

1 EDP - Equations aux Dérivées Partielles
2 MC2 - Modélisation, contrôle et calcul

In this work we propose a coupling of vortex methods, which are part of particle methods, with penalization technique in order to handle in an accurate and easy way complex media composed of solid, fluid and porous areas. This immersed boundary approach indeed enables on one hand to keep the efficiency and the robustness of vortex methods and, on the other hand, allows to model the three different media without prescribing any boundary condition. In the present study, we propose an application of this immersed boundary method to passive flow control past a semi-circular cylinder. This control is achieved adding porous areas around the obstacle in order to regularize the generated wake and smooth the flow dynamics.

Keywords: semi-lagrangian methods; penalization technique; porous media; passive flow control; aerodynamic performances; particle methods

Domains: Fluid mechanics [physics.class-ph]; Fluids mechanics [physics.class-ph]

Chloé Mimeau, Iraj Mortazavi, Georges-Henri Cottet. Application of a Vortex Penalization Method in Solid-Porous-Fluid Media to Passive Flow Control. ICCFD8 - 8th International Conference on Computational Fluid Dynamics, Jul 2014, Chengdu, China. ⟨hal-00983503⟩