SimScale CAE Forum

Improve mesh quality of the elements in the transitional zone between 2 region refinements

Hi,

I have used Simscale for external flows simulations. I have noticed that mesh quality tends to be poor in the transitional zone between 2 region refinements with different element sizings (e.g. high aspect ratio). This usually leads to aphysical results in this zone. Is there a way to create smoother transition?

The picture below, I set 2 region refinements and you can easily see the bad elements situated on the boundary of each region, forming a box-like shape.

Boris

Hey Boris, could you also add the link to your project please?

Best regards,
Fillia

Hi Fillia,

here is the link
https://www.simscale.com/projects/ttawandharong/xplorer_ii/

The model is Surge ver 1

The result is obviously unreasonable and does not converge

Boris

Hi there, this was not meshed with the Standard mesher, right?

It’s a result of standard mesher with the active hex-core element option