Learning Forum

[DRD08]

Hi, I am simulating airflow around a wing within the ground effect. The results reached the 0.001 residual target at around 550 Iterations, I continued the simulation and the monitored lift and drag coefficient continued to drop around 0.00001 every 5 iterations even at 1000 iterations. When will my results stabilize or is there something I'm doing wrong? I am using the K-Omega SST Turbulence model, the mesh has a cell count of around 2 million. The solution and methods are attached in the image. Any advice will be appreciated. Thanks!

[SRP]

Hi,

The fact that your residuals have reached a convergence criterion of 0.001 is promising, but the observed fluctuations in the lift and drag coefficients indicate that the solution may still be stabilizing.

With 2 million cells, your mesh seems reasonable, but ensure that it has sufficient refinement in the boundary layer

[DRD08]

Hi thanks, It just turned out I had to let it solve for more iterations.