Energy considerations in the SPH method with deformable boundaries and application to FSI problems

被引：12

作者：

Hermange C. ^{[1
,2
]}

Oger G. ^{[2
]}

Le Touzé D. ^{[2
]}

机构：

[1] La Manufacture Française des Pneumatiques MICHELIN, Clermont-Ferrand

[2] Ecoel Centrale Nantes, LHEEA Lab. (ECN/CNRS), Nantes

来源：

Journal of Computational Physics: X | 2019年 / 1卷

关键词：

Energy conservation; Fluid-structure interaction; Interface coupling energy; SPH-FE Coupling;

D O I：

10.1016/j.jcpx.2019.100008

中图分类号：

学科分类号：

摘要：

This study aims at improving a coupling strategy between Smoothed Particle Hydrodynamics (SPH) with Finite Element (FE) methods in order to model violent Fluid-Structure Interaction (FSI) problems. An analysis of the SPH-FE coupling from the energetic point of view is carried out. The purpose of this work is to quantify the loss/gain in energy at the fluid-structure interface, within the fluid, and within the structure. Interface energy is especially compared to other energy components, highlighting the importance of this term. Different structure models are considered. Additionally, few proposals are made for improving the quality and efficiency of the coupling strategy. Investigations are performed on 2D simulations of both academic and experimental test cases. © 2019 The Authors

引用

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