Comment 8 for bug 1362090

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Bruno Chareyre (bruno-chareyre) wrote : Re: [Yade-dev] [Bug 1362090] Re: problem with pressure calculation in PFV cells

> I did so, but this messages occur:
>
> ...
> Starting calculation, number of steps: 50000000
> 6 : Vh==NULL!! id=6 Point=0.000512399 0.00124487 0.00125213 rad=3.15073e-05

It means that the geometry is weird and triangulation can't be
constructed. "nan" positions does not sound good either.
Does it happen at the first iteration after activating the fluid?
It could be the triax engine not working well when combined with fluid
flow, thus moving boundaries the wrong way. I would try to assign the
movement of the walls by myslef to see if it works correctly in that case.
Also, did you inspect the positions of particles and walls? Why are some
coordinates "nan"?
Isn't it possible to reduce the number of particles to make the script
faster. Waiting 2h to see a bug is scary.
Bruno