# Can simscale handle 3 fluid VoF problems?

**URL:** <https://www.simscale.com/forum/t/can-simscale-handle-3-fluid-vof-problems/101070>\
**Category:** Using SimScale\
**Created:** [May 21, 2026, 12:20pm UTC](https://www.simscale.com/forum/t/can-simscale-handle-3-fluid-vof-problems/101070 "2026-05-21T12:20:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![maissaclifford](https://www.simscale.com/forum/letter_avatar/maissaclifford/32/5_5575768a8748004e209b776fc1b2916d.png) [@maissaclifford](https://www.simscale.com/forum/u/maissaclifford)\
**Post date:** [May 21, 2026, 12:20pm UTC](https://www.simscale.com/forum/t/can-simscale-handle-3-fluid-vof-problems/101070/1 "2026-05-21T12:20:59Z")

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Hello,

Can SimScale handle a 3-fluid VoF setup such as oil / water / air?

I know OpenFOAM supports this through the multiphaseInterFoam solver, but I couldn’t find anything in the SimScale documentation confirming whether this is currently supported.

I also noticed there now seem to be two different VoF-based workflows/solvers in SimScale (the dedicated “Multiphase” analysis and the newer “Multi-purpose Multiphase” solver), and I’m a bit confused about the intended use cases and differences between them.

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**Author:** ![RicardoParis](https://www.simscale.com/forum/user_avatar/www.simscale.com/ricardoparis/32/30222_2.png) [@RicardoParis](https://www.simscale.com/forum/u/RicardoParis)\
**Post date:** [May 21, 2026, 3:08pm UTC](https://www.simscale.com/forum/t/can-simscale-handle-3-fluid-vof-problems/101070/3 "2026-05-21T15:08:24Z")

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Hi,

Currently both “multiphase” and “multi-purpose” only allow 2 phases in the setup. There are plans to extend the multi-purpose capabilities to n phases, however this is not in the immediate roadmap.

These are two solvers that happen to have a bit of overlap as far as capabilities go (i.e. multiphase capabilities). But multi-purpose is a more generic solver, allowing for single/multiphase, CHT, cavitation, multicomponent, steady-state/transient, and more types of studies.