1 Introduction

OpenFOAM handles multiphase simulations with the interFoam solvers through using a single field that represents the phase present at a certain cell, face or vertex. The field is usually named alpha or alpha1.

Therefore, given that it's a single field, this means that:

values of 0 indicates that the phase at that cell/face/vertex is only the first phase;
while 1 indicates that it's only the second phase.
Anything in between is a mixture of the two phases, at a reason implied by the value.

The simplest example is 0.5, which means that it's a mix of equal proportion of the first and the second phase. In other words, this should be an indication of where the separation surface is between each phase.

Notes

Make sure to study well the tutorial damBreak, as explained in OpenFOAM's User Guide: 2.3 Breaking of a dam

2 Steps using `paraFoam`

After running the multiphase solver, run paraFoam:
```
paraFoam
```

3 Tips

How to keep track of the height at a certain position: Temporal Analysis - post #2

HowTo post-process multiphase results

1 Introduction

2 Steps using paraFoam

3 Tips

2 Steps using `paraFoam`