thanks for this advise.
1. I think the 'System Info' from Help menu is in order as far as openFOAM is concerned. Here is the output:
System_info_result.PNG2. The Turbulent flow over backwards... tutorial model runs correctly and prints 'model validation passed', which means that openFOAM does work correctly
3. I defined the problem with single Navier-Stokes physics mode only. I found out that since I selected 'second order discretization', both openFOAM and SU2 got disabled. When I select 'first order discretization', both got activated. openFOAM works perfectly on my problem too. But, I get an error message for all the three solver options (laminar, Spalart-Allmaras and K-Omega (SST)) of SU2. Here is the error screenshot:
SU2_error_in_FEATool.PNG.
I doubt whether my SU2 is properly installed, as the 'System Info..' result says that the version of SU2 is 'unknown'.
Please suggest a solution.