OpenPhasePhase-field simulation, documented.

An open-source C++ framework for multi-physics phase-field simulations — built over fifteen years at ICAMS, Ruhr-Universität Bochum.

Start with the Introduction

Code Reference

Cite OpenPhase

Guide

A task-oriented path from installation through your first simulation to the advanced solver features. Written for materials scientists, not compiler authors.

Read the guide

Solver modules

Boundary conditions, damage, diffusion, the phase-field solver itself, mechanics, and more — one reference page per module OpenPhase ships.

Browse modules

Code reference

The full public C++ API, generated from the sources — so it never drifts away from what the compiled library actually exposes.

Open reference

Cite the work

BibTeX entries, DOIs, and the two peer-reviewed papers behind OpenPhase — everything you need to credit it properly in a publication.

How to cite

What OpenPhase is

OpenPhase is a multi-physics simulation framework combining the multiphase-field method with finite-strain mechanics and the lattice Boltzmann method. It is used to study microstructure evolution in real multicomponent, multiphase materials — including large deformations, fluid dynamics, and reactive transport.

Where to start

New to OpenPhase? Introduction, then Installation, then Your First Simulation.
Already running it? Jump into the solver modules or the code reference.
Writing a paper that uses it? See Cite OpenPhase.

What it's used for

Solidification in multicomponent systems with melt flow
Grain growth, recrystallization, and texture evolution in polycrystals
Solid-state phase transformations accompanied by large deformations and plasticity
Multiphase flow, wetting, and droplet dynamics via the lattice Boltzmann method
Heat and mass transport in reactive gas flows through particle beds
Additive manufacturing process simulations