Towards Hybrid LES-RANS-Coupling for Complex Flows with Separation B. Jaffrézic, M. Breuer, O. Chikhaoui, G. Deng and M. Visonneau ESAIM: Proc., 16 (2007) 89-113 Published online: 02 March 2007 DOI: 10.1051/proc:2007010