span average problom

Hello everyone, I’m facing a span average problem. Specifically, I have a 3D airfoil case, and I want to calculate the average of the fields in the spanwise (z) direction, resulting in a 2D plane (xy) where the averaged values are set.

In fact, I’ve seen many span average problems on the ParaView forum, but what surprises me is that most of these issues haven’t received satisfactory solutions. I believe there are many people, like us, who encounter span average problems in the past, present, and future. Perhaps all we need are some relatively specific tips.
I’m looking forward to the help of kind-hearted individuals.
Best regards.