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HZDR Multiphase Addon for OpenFOAM

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Helmholtz-Zentrum Dresden-Rossendorf

Contributing organisations

The OpenFOAM Foundation , CFD Direct


Multiphase Flow Numerical Simulations OpenFOAM Computational Fluid Dynamics Finite volume method Multi-field two-fluid model Euler-Euler method

Research field


Scientific community

Energy / MTET, Computational Fluid Dynamics



Programming Languages

C++, C, CUDA, Shell, Python, Gnuplot




free and open




HZDR Multiphase Addon for OpenFOAM

The majority of the developments for numerical simulation of multiphase flows at HZDR are implemented in the open source library OpenFOAM. OpenFOAM is the leading open source software package for numerical simulations of fluid flows (Computational Fluid Dynamics, CFD) in engineering applications. By signing the Contributors Agreement with the OpenFOAM Foundation in 2017, HZDR has the unique opportunity to actively participate in the development of OpenFOAM. An example is the contribution of the population balance modelling framework in 2017 together with VTT Technical Research Centre of Finland Ltd, which is continuously developed and improved since.

Besides, HZDR develops an extension for multiphase flows, the HZDR Multiphase Addon for OpenFOAM, and a validation database, the HZDR Multiphase Case Collection for OpenFOAM, both published via Rossendorfer Data Repository. Since 2019, HZDR coordinates the development work for OpenFOAM_RCS (RCS - Reactor Coolant System), which is an extension for OpenFOAM to simulate the primary cooling circuit in a nuclear power plant. As a member of the OpenFOAM Process Engineering Consortium, HZDR has established a strong cooperation with the chemical and process engineering industry to ensure that the research done on multiphase flows fits industrial needs.


  • OpenFOAM-Hybrid: A morphology adaptive two-fluid model
  • OpenFOAM_RCS: Sustainable development of simulation software for modeling of reactor coolant systems
  • Scientific workflow based on Snakemake workflow management
  • more

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