[Florian.G]

Hi Foamers,


I am trying to simulate the phenomenon of sedimentation of two liquid species. I consider a box in which the species are mixed at time 0, without any incoming or outgoing flow. I would like to observe the separation of the two phases over time, due to gravitation, with the heavier species falling to the bottom of the box. To do so, I use the driftFluxFoam solver.




But when the simulation runs, the following error appears :
PrintStack.jpg


The problem no longer occurs if the value of alpha.sludge (originally 1/3) is smaller.


Any ideas ?


Thank you in advance,
Regards,
Florian

[alexeym]

Hi,

addr2line is an utility, which can be installed. It is a part of GNU binutils package.

Concerning your error, it happens in pow call, in BinghamPlastic there are two such calls:

            pow
            (
                scalar(10),
                yieldStressExponent_
               *(max(alpha_, scalar(0)) + yieldStressOffset_)
            )
          - pow
            (
                scalar(10),
                yieldStressExponent_*yieldStressOffset_
            )

You say, reducing alpha helps, so maybe BinghamExponent is too large?

[Florian.G]

Hi Alexey,


I reduced BinghamExponent and it worked !


Thank you for your help.