Update README.md

README.md

@@ -7,23 +7,28 @@ In this repository, a new real gas model for hydrogen based on the Reference Flu
 
 ## OpenFOAM folder structure
 
-![](OpenFOAM_folder_structure.PNG)
+<img src="OpenFOAM_folder_structure.PNG" width="800">
 
 
 ## Tutorial
 
 In a tutorial case of the flow through a critical flow Venturi nozzle, the usage of the new real gas model is shown.
 
-![](CFVN.PNG)
-
 For the start of the simulation, do the following steps:
-1. run `blockMesh && extrudeMesh`
+1. run `blockMesh && extrudeMesh` to create the mesh
 2. run either:
-    - `sonicFoam` or 
-    - `decomposePar` and then `mpirun -np 4 sonicFoam -parallel`
+    - `sonicFoam > log &` or 
+    - `decomposePar` (default number of processors is 4) and then `mpirun -np 4 sonicFoam -parallel > log &` to run the simulation
 
 For the post-processing, you might need to:
+
 3. run `reconstructPar` (if your case was decomposed before) 
+4. select the file "nozzle.foam" for the visualization in e. g. ParaView
+
+The distribution of the real gas Mach number is displayed in the figure below.
+
+<img src="CFVN.PNG" width="800">
+
 
 ## Acknowledgments
 This work was supported through the Joint Research Project “Metrology infrastructure for high-pressure gas and liquified hydrogen flows”. This project (20IND11 MetHyInfra) has received funding from the EMPIR programme co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation programme.