# Installation - read about installation of [OpenFOAM-dev from Source Repository](https://openfoam.org/download/source/) - patch requires commit 375e1f7c63fff4bc0702e5272353c99dc7eb1ed2 - clone repository and checkout commit ```shell git clone https://github.com/OpenFOAM/OpenFOAM-dev.git cd OpenFOAM-dev git checkout 375e1f7c63fff4bc0702e5272353c99dc7eb1ed2 ``` - copy patch to OpenFOAM-dev and apply patch ```shell git am 0001-Adding-multiphase-solver-cipsaMultiphaseEulerFoam.patch ``` - proceed with OpenFOAM installation instructions