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HZDR Multiphase Addon for OpenFOAM

Schlegel, F.; Draw, M.; Evdokimov, I.; Hänsch, S.; Khan, H.; Lehnigk, R.; Meller, R.; Petelin, G.; Tekavčič, M.
Other: Couteau, Arthur; Other: Colombo, Marco; Other: Kriebitzsch, Sebastian; Other: Parekh, Jigar

The HZDR multiphase addon contains additional code 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). Within the OpenFOAM library the multiphaseEulerFoam framework is used for this type of simulation. The addon contains a modified multiphaseEulerFoam named HZDRmultiphaseEulerFoam with the full support of the HZDR baseline model set for polydisperse bubbly flows according to Liao et al. (Chem Eng Sci, 2019, Vol. 202, 55-69). In addition a solver dedicated to a hybrid modelling approach (dispersed and resolved interfaces, Meller et al., Int J Numer Meth Fluids. 2020, 1-26) named cipsaMultiphaseEulerFoam is provided with the addon. This solver has an interface to the multiphaseEulerFoam framework and utilizes all available interfacial models of it.

General enhancements

HZDRmultiphaseEulerFoam

cipsaMultiphaseEulerFoam

  • morphology adaptive modeling framework for modelling of dispersed and resolved interfaces based on Eulerian multi-field two-fluid model
  • compact interpolation method according to Cubero et al. (Comput Chem Eng, 2014, Vol. 62, 96-107), including virtual mass
  • numerical drag according to Strubelj and Tiselj (Int J Numer Methods Eng, 2011, Vol. 85, 575-590) to describe resolved interfaces in a volume-of-fluid like manner
  • n-phase partial elimination algorithm for momentum equations to resolve strong phase coupling
  • free surface turbulence damping for k-ω SST (symmetric and asymmetric damping, Frederix et al., Nucl Eng Des, 2018, Vol. 333, 122-130)
  • selected tutorial cases:
    • a two-dimensional gas bubble, rising in a liquid, which is laden with micro gas bubbles, and
    • a two-dimensional stagnant stratification of water and oil, sharing a large-scale interface
    • a two-dimensional stratified flow based on the experiment of Fabre et al. (Multiphase Sci Technol, 1987, Vol. 3, 285–301)

Keywords: Multiphase Flow; Numerical Simulations; OpenFOAM; C++; CFD; Finite volume method; Baseline model; Multi-field two-fluid model; Eulerian-Eulerian model; Momentum interpolation; Partial elimination algorithm; Free Surface

  • Software in the HZDR data repository RODARE
    Publication date: 2021-01-26
    DOI: 10.14278/rodare.767
    License: GPL-3.0-only

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Permalink: https://www.hzdr.de/publications/Publ-32194
Publ.-Id: 32194