A solver for multiphase flows based on the incompressible Eulerian multi-field two-fluid model for the OpenFOAM release of The OpenFOAM Foundation for numerical simulations of multiphase flows with morphology changes and resolved interfaces.

Features:

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
strong phase coupling resolved by partial elimination algorithm
selected test 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

This work was supported by the Helmholtz European Partnering Program in the project "Crossing borders and scales (Crossing)".

{"references": ["Meller, R, Schlegel, F, Lucas, D. Basic verification of a numerical framework applied to a morphology adaptive multifield two\u2010fluid model considering bubble motions. Int J Numer Meth Fluids. 2020; 1\u2013 26. https://doi.org/10.1002/fld.4907"]}