Hello:

I have transient simulation results that I read into Paraview. I would like to calculate drag and lift at each time step. I have the normal and tangential wall stresses output at every time step. How do I accomplish this ?

For a given time step, I understand that I can use the sequence of filters

Extract Boundary surface -> Generate surface normals -> Multiply stress by area -> Multiply by normals -> Integrate Variables Filter

How do I get this drag and lift output written out at each time step ?

Regards,
Sanjeeb Pal
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