Toward a 2D SPH Multiphysic Code with Solid-Solid & Fluid Interactions for Industrial Related Problems

TL;DR

This paper enhances a 2D SPH code for industrial applications by adding features for solid-fluid interactions, validating it with classical tests, and proposing methods for solid-solid contact simulations.

Contribution

The paper introduces SPHYSIC2, an improved 2D SPH code with advanced solid-solid and fluid interactions tailored for industrial problems.

Findings

Successful validation with dam break and wedge entry tests

Enhanced code capabilities for solid-fluid coupling

Proposed methods for solid-solid contact simulation

Abstract

In the present study, applications of the SPH method to industrial related issues are considered by starting from an existing open source 2D SPH code, namely the SPHYSICS code, which offers an effective ground for numerical developments, which are performed in order to bring an answer to industrial problems, such as simulations of solid/fluid coupling in a free surface flow context. The purpose of the present paper is therefore to expose the numerical developments which yield an enhanced version (referred to as "SPHYSIC2") of the initial code. Firstly, the different features added to obtain the operational code needed for engineering applications are described, and so are the problems raised on this way, offering a kind of review of SPH methods for engineers. Secondly, the validation of the proposed code is partially presented with two well known but difficult test cases, namely the classical "dam break" and "wedge entry" problems. Thirdly, principles of a method to solve solid/solid contacts, frequently present in realistic configuration, are exposed and applied to achieve more complex simulations. Finally, perspectives for new features of the SPHYSIC2 code are exposed and discussed.