Convergence Question
Dear All,
I have a small question regarding convergence and I would be most grateful if any one can answer it. I did a 2D problem earlier of a wing and it took the lift and drag about 8000 iterations to converge, however I modelled the similar wing in 3D and this time it the solver about 2500 iterations to converge on a solution. My question is how come this happened even though I have used similar boundary conditions and turbulence model? Is 3D quick compared to 2D? Any suggestions would be greatly appreciated. Thanks in advance. James 
Re: Convergence Question
Looks like there might be some problem. Did you change any of the Underrelaxation factors?

Re: Convergence Question
Hi,
No I did not change any thing! Thanks, James 
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