MULTIPHYSICS MODELISATION OF AN UNPROTECTED LOSS OF FLOW TRANSIENT IN A SODIUM COOLED FAST REACTORS USING A NEUTRONIC-THERMAL-HYDRAULIC COUPLING SCHEME. - Margulis, M.; Blaise, P.; Pascal, V.; Gorsse, Y.; Alpy, N.; Ammar, K.; Anderhuber, M.; Baudron, AM.; Campioni, G.; Junquera, A. Canas; Gerschenfeld, A.; Patricot, C.; et al. (EPJ Web of Conferences, 2021)