Passive and active flow control using vortex methods

Georges-Henri Cottet (1) , Roland Hildebrand (2) , Petros Koumoutsakos (3) , Chloé Mimeau (1) , Iraj Mortazavi (4, 5) , Philippe Poncet (6)

1 EDP - Equations aux Dérivées Partielles
2 CASYS - Calculs Algébriques et Systèmes Dynamiques
3 CSE Lab - Computational Science and Engineering Laboratory
4 IMB - Institut de Mathématiques de Bordeaux
5 MC2 - Modélisation, contrôle et calcul
6 LMAP - Laboratoire de Mathématiques et de leurs Applications [Pau]

This paper deals with the application of remeshed particle methods for the simulation and control of wakes behind obstacles. We consider passive as well as active control strategies. Active control consists of jets at the boundary and we show how enhancing natural 3D instabilities of the flow can reduce the drag. Passive control strategies consist of porous coatings on the obstacle and we investigate optimal locations of the porous coating to regularize the wake downstream and reduce the drag.

Mots clés: Penalization method; Vortex method; Porous medium; Cylinder wakes; Drag reduction

Domaines: Analyse numérique [math.NA]

Georges-Henri Cottet, Roland Hildebrand, Petros Koumoutsakos, Chloé Mimeau, Iraj Mortazavi, et al.. Passive and active flow control using vortex methods. 6th International Conference on Vortex Flows and Vortex Models, Nov 2014, Nagoya, Japan. ⟨hal-01063292⟩