[Rotidpor]

Hello foamers,


the question is in the title. Is there any way to calculate the vorticity in Paraview ? Openfoam can do it with the -postProcess -func vorticity utility but I'm a bit confused with Paraview.

I don't see anything doable with vectors besides taking the magnitude or creating a vector field with iHat kHat jHat from three scalar fields in the calculator utility.


Thank you for helping me out.

[HPE]

Hi,

- `curl` operator is not a part of ParaView calculator, afaik.
- Instead, you can use the `Python Calculator`: https://vtk.org/Wiki/Python_Calculator
- Why do you want to compute vorticity in ParaView if you do use OpenFOAM?

Thanks.

[Rotidpor]

Thanks for your answer HPE.


I wanted to do the calculation of the vorticity in Paraview because my cases are decomposed and very, very heavy.
I use another node for Paraview so it would have been convenient to be able to manipulate fields in paraview while my other machines are calculating.

[HPE]

If the parallelisation is the problem, please bear in mind that you can also execute `postProcess` in parallel.

I strongly suggest you to consider using OpenFOAM utilities over ParaView for data manipulation.

OR, if you would like to use beautiful NumPy/SciPy for OpenFOAM data manipulation, I can also suggest this beautiful parser: https://github.com/xu-xianghua/ofpp

Hope these help.