twoPhaseInterTrackFoam: an OpenFOAM module for Arbitrary Lagrangian/Eulerian Interface Tracking with Surfactants and Subgrid-Scale Modeling

TL;DR

This paper introduces an OpenFOAM module implementing an ALE interface-tracking method for two-phase flows, incorporating subgrid-scale modeling to enhance accuracy in simulating sharp boundary layers.

Contribution

It presents a novel OpenFOAM module that combines ALE interface tracking with a flexible SGS modeling framework for improved two-phase flow simulations.

Findings

Successfully tracks two fluid phases with ALE method.

Integrates a flexible SGS modeling framework.

Simplifies adding new SGS models to OpenFOAM.

Abstract

We provide an implementation of the unstructured Finite-Volume Arbitrary Lagrangian / Eulerian (ALE) Interface-Tracking method for simulating incompressible, immiscible two-phase flows as an OpenFOAM module. In addition to interface-tracking capabilities that include tracking of two fluid phases, an implementation of a Subgrid-Scale (SGS) modeling framework for increased accuracy when simulating sharp boundary layers is enclosed. The SGS modeling framework simplifies embedding subgrid-scale profiles into the unstructured Finite Volume discretization. Our design of the SGS model library significantly simplifies adding new SGS models and applying SGS modeling to Partial Differential Equations (PDEs) in OpenFOAM.