diff --git a/docs.it4i/lumi/openfoam.md b/docs.it4i/lumi/openfoam.md
new file mode 100644
index 0000000000000000000000000000000000000000..f7576bca49337ef71aebc49582145f240a718576
--- /dev/null
+++ b/docs.it4i/lumi/openfoam.md
@@ -0,0 +1,80 @@
+# OpenFoam
+
+OpenFOAM is a free, open source CFD software package.
+OpenFOAM has an extensive range of features to solve anything
+from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid dynamics and electromagnetics.
+
+## Install 32bit/64bit
+
+!!! warning
+
+    There is a very small quota for maximum number of files on LUMI:
+    projappl (100K), scratch (2.0M), flash (1.0M) - check: `lumi-quota`.
+
+```
+#!/bin/bash
+
+SCRATCH="/pfs/lustre..."
+
+cd $SCRATCH
+mkdir -p openfoam
+cd openfoam
+
+export EBU_USER_PREFIX=$PWD/easybuild/lumi-c-23.09
+module load LUMI/23.09 partition/container EasyBuild-user
+
+#32bit - use eb file from this repository
+#eb OpenFOAM-v2312-cpeGNU-23.09.eb -r
+
+#64bit - use eb file from this repository
+eb eb/OpenFOAM-v2312-64bit-cpeGNU-23.09.eb -r
+```
+
+## Run 32bit/64bit
+
+```
+#!/bin/bash
+
+SCRATCH="/pfs/lustre..."
+
+cd $SCRATCH/openfoam
+
+export EBU_USER_PREFIX=$PWD/easybuild/lumi-c-23.09
+module load LUMI/23.09 partition/container EasyBuild-user
+ml OpenFOAM/v2312-cpeGNU-23.09-64bit
+
+#32bit
+#source $EBROOTOPENFOAM/etc/bashrc WM_COMPILER=Cray WM_MPLIB=CRAY-MPICH
+
+#64bit
+source $EBROOTOPENFOAM/etc/bashrc WM_COMPILER=Cray WM_MPLIB=CRAY-MPICH WM_LABEL_SIZE=64
+
+OPENFOAM_PROJECT="/pfs/lustre..."
+cd $OPENFOAM_PROJECT
+
+srun -n 1 blockMesh
+srun -n 1 decomposePar
+
+srun -n $SLURM_NTASKS snappyHexMesh -overwrite -parallel | tee log.snappy
+srun -n $SLURM_NTASKS createPatch -overwrite -parallel | tee log.createPatch
+srun -n $SLURM_NTASKS transformPoints -scale '(0.01 0.01 0.01)' -parallel | tee log.transformPoint
+srun -n $SLURM_NTASKS renumberMesh -overwrite -parallel | tee log.renum
+srun -n $SLURM_NTASKS pimpleFoam -parallel | tee log.pimpleFoam1
+```
+
+## License
+
+OpenFOAM is the free, open source CFD software developed primarily by OpenCFD Ltd since 2004.
+OpenCFD Ltd, owner of the OpenFOAM Trademark, is a wholly owned subsidiary of ESI Group.
+
+ESI-OpenCFD produces the OpenFOAM® open source CFD toolbox and distributes freely
+via [https://www.openfoam.com/][a]. OpenCFD Ltd was established in 2004 to coincide with
+the release of its OpenFOAM software under general public license.
+
+OpenFOAM is distributed under the GPL v3 license.
+
+## References
+
+- Homepage: [http://www.openfoam.com/][a]
+
+[a]: https://www.openfoam.com/
diff --git a/mkdocs.yml b/mkdocs.yml
index 9ed42908f3b81b34a856cc4630c1699418f64ec9..a7b0ae5590acaff15ec7d4dc03caebc9df36cf93 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -304,6 +304,7 @@ nav:
       - About LUMI: lumi/about.md
       - LUMI Software:
         - General: lumi/software.md
+        - OpenFoam: lumi/openfoam.md
         - PyTorch: lumi/pytorch.md
       - LUMI Support: lumi/support.md
   - Clouds: