Dear DuMux community,
Thank you very much again for helping me on my "GravityAtPosition" problem 
earlier this year. Unfortunately, I am facing a new problem.

I am trying to invoke a value inside my fluidmatrixinteraction.file which is 
defined by my problemspatialparams.file
Dumux provides several examples in which this is done for (constant) Scalar 
values. For example:
const MaterialLawParams& materialLawParams(const Element &element, const 
FVElementGeometry &fvGeometry, const int scvIdx) const
    {   const GlobalPosition &globalPos = fvGeometry.subContVol[scvIdx].global;
            if (isOutletMaterial_(globalPos))
             return outletMaterialParams_;
            else
           return coreMaterialParams_;   }

Where the parameters can be defined as following
CorefloodProblemSpatialParams(const GridView &gridView)
        : ParentType(gridView)
    {
                   outletMaterialParams_.settest(1);
                   coreMaterialParams_.settest(2);
    }


This is quite clear to me - However, I am wondering if this also possible for 
properties which change in time and spatial orientation? In my very specific 
case, I would like to invoke a fluid component concentration inside my 
fluidmatrixinteraction.


Do you have any suggestions?

Thank you and best regards,
Felix




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