Multi-phase Flow in OpenFOAM
This page summarizes the multi-phase cases supplied with OpenFOAM 1606+. An informative and well documented tutorial can be found here. Disclaimer / IPR: the ownership and copyright of this document lies with the author mentioned in the document.
The following video is an attempt to model air entrainment using multiphase flow. In the left video, you may notice how spherical bubbles are formed due air entrained by water stream entering into the bottle. The interface of the air bubble and water is sharp. This feature is not as prominent in the simulation primarily due to corse mesh. Capturing a sharp interface between gas and liquid will require a very fine mesh. Some improvements planned are:
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