Simple Test Case - OpenFOAM Error

Operating system: Ubuntu 20.04
OpenFOAM version 9 (bashrc updated, verified working)

Steps to reproduce:
File -> New Model -> Model Examples and Tutorials -> Fluid Dynamics -> Turbulent Flow Over a Backwards Facing Step
OpenFOAM Error: Could not read velocity solution. Check OpenFOAM log file for convergence.



Any help would be greatly appreciated.
Thanks,
Peter

Unfortunately, there is not enough information to say what could be wrong. OpenFOAM has not returned a solution for some reason, there is something in your system setup preventing OpenFOAM from running normally when using the toolbox.

Also you can try using the another OpenFOAM distribution as they can have been built differently (https://www.openfoam.com or https://www.openfoam.org).

Did you ever resolve this?   I'm getting the same error in a fresh install.

The issue occurs when you install OpenFoam per instructions.  The instructions for the SU2 Solver direct you to install MPI V10.  Apparently it's assumed that OpenFoam contains MPI V10 but you really need to install it from the Microsoft website.  This resolves the error.

Bagorats wrote

The issue occurs when you install OpenFoam per instructions.  The instructions for the SU2 Solver direct you to install MPI V10.  Apparently it's assumed that OpenFoam contains MPI V10 but you really need to install it from the Microsoft website.  This resolves the error.

Thank you for confirming the issue, and that installing MPI V10 separately helps. It is not quite clear yet why a separate MPI install is necessary, as OpenFOAM typically comes with its own, the OpenFOAM instructions will be updated once this is clear.

Hello, may I know the specific location of MPI download, because I also encountered a similar problem, but when I downloaded MPI to the openform folder, the problem still did not solve.

Follow the link in the documentation https://www.featool.com/doc/openfoam#install_of_mpi, also it is not enough to download and copy, you must install the MPI binaries to your system so they are accessible to the toolbox (how to install programs and software depends on what type of system/OS you are using).