[Paraview] Pipeline suggestion

[Berk Geveci]

Overall, it looks good. Are you getting unexpected results? Also, if
you want more accuracy, you can skip point to cell and write a Python
filter that iterates over cells and performs its own integration. This
would also allow you to do all components at once.

-berk

On Fri, Oct 16, 2009 at 9:10 AM, Renato Elias <rnelias at gmail.com> wrote:
> Folks,
>
> I'm trying to integrate hydrodynamic forces on an immersed body. Point
> velocity and pressure fields come from a FEM solver. Ok, for this purpose,
> I'll need:
>
> a). The body's surface
> b). Stress tensor (computed as cell data)
> c). Body cell normals
>
> Here goes the pipeline I'm trying to use:
>
> 1. Load the volume data
> 2. Clean to grid (to remove parallel interfaces among mesh partitions)
> 3. Compute Derivatives (output tensor type = strain)
> 4. Extract Surface
> 5. Generate Surface Normals
> 6. Point Data to Cell data (to convert point pressure in cell pressure)
> 7. Clip (to get only the body where I'd like to compute the forces)
> 8. from 7: Calculator (sigxx = -pressure+2*mu*Strain_0)
>
> repeate step 8 for other components
>
> Questions are:
>
> -- Does it make sense? I'm asking it because I have some doubts about the
> output of some of the filters I'm using (mainly steps 3 and 5)
>
> -- Is there a more straightforward way to do the same thing?
>
> Thanks for any help
>
> --
> Renato N. Elias
> ===================================
> High Performance Computing Center (NACAD)
> Federal University of Rio de Janeiro (UFRJ)
> Rio de Janeiro, Brazil
>
> Sent from Rio De Janeiro, RJ, Brazil
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