A partitioned approach for the coupling of SPH-ALE and FE methods for transient FSI problems with incompatible time-steps

A previously developed interface energy-conserving coupling technique allows to carry out accurate and stable FSI simulations. In order to prevent the time-step size requirements of one domain from being inherited by the other domain, one must be able to integrate each domain with a different time-step. The purpose of this study is to implement a method allowing to integrate each domain with separate timesteps while respecting the conservation properties of the initially proposed coupling technique Mots clefs : Interaction fluide-structure, conservation de l’energie, couplage multi-echelle en temps