The HZDR Multiphase Addon is a software publication released by Helmholtz-Zentrum Dresden-Rossendorf according to the FAIR principles (Findability, Accessibility, Interoperability, and Reuseability). It contains experimental research work for the open-source CFD software OpenFOAM, released by The OpenFOAM Foundation. The developments are dedicated to the numerical simulation of multiphase flows, in particular to the multi-field two-fluid model (Euler-Euler method).

Highlights of the provided addon are:

HZDR Baseline Model: addonMultiphaseEulerFoam solver with full support of the HZDR baseline model set for polydisperse bubbly flows, including configuration files and tutorials for simplified setup of Baseline cases (Hänsch et al., 2021).
Population Balance Modelling: A GPU-accelerated population balance method according to Petelin et al. (2021).
OpenFOAM-Hybrid cipsaMultiphaseEulerFoam solver featuring a hybrid modelling approach (dispersed and resolved interfaces, Meller et al., 2021) with an interface to the multiphaseEulerFoam framework to utilise all available interfacial models, and configuration files and tutorials for easy setup of hybrid cases.
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This work was supported by the Helmholtz European Partnering Program in the project "Crossing borders and scales (Crossing)".

{"references": ["H\u00e4nsch, S., Evdokimov, I., Schlegel, F., & Lucas, D. (2021). A workflow for the sustainable development of closure models for bubbly flows. Chemical Engineering Science, 116807.", "Meller, R., Schlegel, F., & Lucas, D. (2021). Basic verification of a numerical framework applied to a morphology adaptive multifield two\u2010fluid model considering bubble motions. International Journal for Numerical Methods in Fluids, 93(3), 748-773.", "Petelin, G., Lehnigk, R., Kelling, J., Papa, G., & Schlegel, F. (2021). GPU-based Accelerated Computation of Coalescence and Breakup Frequencies for Polydisperse Bubbly Flows. 30th International Conference Nuclear Energy for New Europe (NENE2021), Bled, Slovenia."]}