An Enhanced Fully Lagrangian Coupled MPS-based Solver for Fluid-Structure Interactions

Abstract

The paper presents an enhanced fully-Lagrangian coupled solver for simulations of fluid-structure interactions. The solver is based on Moving Particle Semi-implicit (MPS) method which solves the governing equations corresponding to incompressible fluid flows as well as elastic structures and includes a consistent coupling algorithm. The presented model is an enhanced version of a previously developed FSI solver which benefits from a newly incorporated set of enhanced schemes for the fluid model as well as a refined calculation of fluid force to structure. The enhanced performance of the proposed solver is verified by reproducing a high velocity impact of a deformable aluminum beam on undisturbed water as well as a dam break with an elastic plate.

Current achievements and future perspectives for projection-based particle methods with applications in ocean engineering

“…This key feature of the study by Hwang et al (2014) was achieved through application of a proper coupling algorithm and by taking the advantage of prediction-correction solution process of MPS as a projection-based method. Khayyer et al (2015b) presented a further enhanced version of Hwang et al's method, by incorporating the ECS and DS schemes for the fluid phase as well as applying a Wendland kernel (Wendland 1995;Dehnen and Aly 2012) for calculation of fluid forces on structure. The achieved enhancements as well as applicability of developed MPSbased FSI solver are illustrated in Figs.…”