[skodali]

I've been going at this for weeks now, and it's just frustrating at this point, I've remeshed it 3 times, and tried every conceivable combination of simulation parameters, and the forces just continue to shoot off to infinity with no rhyme or reason.

Anyway, if someone can take a look and possibly point out something it could be, I would really appreciate it.

Here is the geometry, I'm using a cylinder "wind tunnel" right now, but I originally was using a square cross-section, remeshed that. I optimize it in gmsh. See this post for how I was originally able to convert from gmsh to openFoam: Gmsh trouble converting to openFOAM?

Geometry: https://imgur.com/a/l1Sm27U

When I try to run it using just simpleFoam, I don't see any residuals shooting off to inifity, it's just that the force coeffs and general timestep continuity starts to shoot off as well: https://i.imgur.com/QpsWXmR.png

Similar thing happens, but happens sooner when I run potentialFoam first: https://i.imgur.com/FSnCf5y.png

Here are all the initial condition files: https://imgur.com/a/u93VaAU

Relavent system files: https://imgur.com/a/gcKRr2k

boundary mesh file: https://i.imgur.com/G9X9g7j.png

Any help would be really appreciated because at this point, I'm about ready to give up on openFoam.

[klausb]

Hi,

what do you try to simulate?
What's the Reynolds number?
Did you update the turbulence properties?
Do you have a good boundary layer mesh with appropriate y+ ?
Can you show the residual plot using pyFoam?
I assume you tried to modify the simpleFoam motorBike case?

Klaus