Go4Hybrid: Grey Area Mitigation for Hybrid RANS-LES MethodsThis book reports on the EU funded 7th Framework project, Go4Hybrid (Grey Area Mitigation for Hybrid RANS LES Methods). It presents new findings concerning the accuracy and reliability of current hybrid RANS LES methods. It describes improved formulations of both non zonal and embedded hybrid strategies, together with their validation in a broad range of flow cases, and highlighting some key industrial applications. The book provides students,