Solution Diverged

I am simulating the wind flow in a district with a domain with architecture cutted out from.

It shows :The solution diverged, please check your simulation setup. Divergence can also be caused by bad elements in the mesh. Such elements tend to exist near walls and sharp corners. Visually inspect your mesh to locate them and re-mesh with additional refinements in their vicinity. If you are confident about the mesh-quality, please reduce relaxation factors and use more conservative numerical schemes.

The link to the project: (SimScale Login)

Hi @jwang26, thanks for posting at our forum :slight_smile:

When looking at your geometry, I don’t see the creation of an external flow region, which will be a great problem, since it’s necessary for these kinds of simulations:

The workflow for the creation of an external flow region can be found here.

Here you can also find multiple examples of cases similar to yours that you can be inspired by:

Try to follow these first steps and get back to us with the results!


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