Learning Forum

[Diabq]

I am using ANSYS 2020R2 and Ansys 18.2 to solve the same problem the mesh used is the same and all the solution's parameters are too yet I still face a difference of 7% in my results .

Most importantly, the solution using fluent 18.2 takes up to 9 hours the solution using 2020R2 takes under an hour to solve

Any idea what is the reason behind this difference

[Rob]

What models are you using, and how does the convergence compare?

[Diabq]

viscous laminer and they both converage at 1e-6

[Diabq]

residuals as well as the monitors are the same in both cases

[Rob]

And what monitor/result is different? Please post images to show the changes otherwise there's not a lot we can do.