Application to Fluid-Structure Interaction using Eulerian scheme with Lagrangian Particles

Abstract

We have developed a new numerical scheme that combines a Eulerian scheme with Lagrangian particles to compute fluid-structure interaction caused by impact pressure. The proposed numerical model was applied to several problems such as water entry problems with splashing in 2D and 3D, impact pressure problems caused by breaking and interaction between an elastic structure and water wave. The present model can reproduce not only impact pressure acting on a vertical wall but also deformation, vibration, stress and strain. We validated an internal strain field of structure due to wave force by using a piezoelectric sensor. We showed the flexible sensor developed is useful to measure an internal stain and solid deformation.