Wavy lines on wing?

Hi, I am working on a wing. But after meshing there are some weird curvy lines on the side face of the wing. I do not what is causing this. Can anyone educate me on this and how can I reduce this ?

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Here is my link : SimScale

Ahhh, good old NACA0012, sounds familiar. This tutorial should help you out: Session 1 of CFD Master Class :slight_smile:

Let us know if that helped!

Jousef

Yes that did help. Thank you :+1::v: