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-   -   of1812 vs of6 (https://www.cfd-online.com/Forums/openfoam-solving/240722-of1812-vs-of6.html)

joshmccraney January 20, 2022 16:12
of1812 vs of6
 
What is the difference between interFoam on OpenFOAM v1812 and OpenFOAM 6.0? I am getting very different results on a simulation. Specifically, it's a zero gravity surface tension dominated flow. Is there an innate difference between these solvers in how surface tension is handled?

NLeb January 22, 2022 06:11
Which solver are you using within each version? interFoam-based or Eulerian?
In ESI-OpenFOAM (you have v1812) there is a solver called interIsoFoam which captures sharp interfaces between phases much better than its MULES-based counterparts (e.g. interFoam). This might be what you are after, although there are also some issues with modelling surface tension in general in OpenFOAM that have not yet been resolved. https://develop.openfoam.com/Develop.../-/issues/2052

joshmccraney January 23, 2022 23:11
Quote:
Originally Posted by NLeb (Post 820747)
Which solver are you using within each version? interFoam-based or Eulerian?
In ESI-OpenFOAM (you have v1812) there is a solver called interIsoFoam which captures sharp interfaces between phases much better than its MULES-based counterparts (e.g. interFoam). This might be what you are after, although there are also some issues with modelling surface tension in general in OpenFOAM that have not yet been resolved. https://develop.openfoam.com/Develop.../-/issues/2052
interFoam for both. I'm getting very different results


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