1. MFEE; EDF R&D; 6 Quai Watier, 78400 Chatou; France
2. School of Mechanical, Aerospace and Civil Engineering; The University of Manchester; Manchester, M13 9PL; UK
3. Saint-Venant Laboratory for Hydraulics; Université Paris-Est (joint research unit EDF R&D, CETMEF, Ecole des Ponts Paristech); 6 Quai Watier, 78400 Chatou; France