Aerodynamic Analysis of Non-pneumatic tires

Project Support
1

Hello, I’m trying to perform a CFD analysis of a non-pneumatic tire for which I have completed all the steps but the simulation was incomplete due to the error shown in the image attached .

Screenshot (96)
Screenshot (96)1920×1080 218 KB
I would be grateful if you could help me rectify the error.
I have also attached the link to my project below:

2

Hi there,

To help users identify and troubleshoot divergence in their simulations, SimScale has a divergence monitor. The following parameters are tracked: velocity, pressure, density, and temperature. Whenever a parameter reaches unrealistic levels in the domain, the simulation automatically stops with an error message:

The error message specifies which parameter diverged and also the exact location in the model. This information is valuable, and can be a starting point for the troubleshooting process.

To gain more insight into the causes of divergence, the following basic steps are useful:

  1. Create a ‘probe point‘ result control and input the coordinates displayed in the error message. In doing so, you will see exactly where the divergence occurred;
  2. If the point is close to one of the boundaries, double-check all boundary conditions, making sure they are correct;
  3. If the point is located inside the domain, inspect the mesh around the area. The ‘mesh quality‘ visualization feature is very useful in this step. Even just a few bad quality cells can create instabilities in the simulation, ultimately leading to divergence.

If you want to learn more, and have a look at some trouble-shooting examples too, make sure to read this article:

Best regards,
Fillia