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Search took 0.00 seconds. Search: Posts Made By: gschaider
Forum: OpenFOAM Community Contributions November 16, 2017, 20:16
Replies: 32
Views: 21,589
Posted By gschaider
I'm afraid not. Because if you have a boundary...

I'm afraid not. Because if you have a boundary with constant x then (\frac{\partial\xi}{\partial y})=0 is not a boundary condition but a differential equation for the value on the boundary
Forum: OpenFOAM Community Contributions September 17, 2014, 17:29
Replies: 32
Views: 21,589
Posted By gschaider
There is a groovyBCDirection that wraps...

There is a groovyBCDirection that wraps directionMixed (http://www.cfd-online.com/Forums/openfoam-pre-processing/61989-directionmixed-mixed-bc.html) but maybe this is not exactly what you need (no...
Forum: OpenFOAM Community Contributions February 22, 2014, 11:23
Replies: 32
Views: 21,589
Posted By gschaider
grep is your friend if you want to find the...

grep is your friend if you want to find the location of variables in the source code (of course there are more sophisticated tool, but this is installed on every system)

That'd be updateCoeffs in...
Forum: OpenFOAM Community Contributions December 17, 2012, 12:30
Replies: 32
Views: 21,589
Posted By gschaider
Hmm. That is strange. It should work. Could you...

Hmm. That is strange. It should work. Could you try some things:

- instead of alphaEff add a constant (although I don't think that is the problem)
- set valueFraction to "uniform 0" (just to be...
Forum: OpenFOAM Community Contributions December 14, 2012, 06:26
Replies: 32
Views: 21,589
Posted By gschaider
OK. Please provide some context (like which...

OK. Please provide some context (like which fields you used which BC on). It is not as absurd as you might think: I have seen people specifying 'type' twice hoping both would work.

Anyway: if the...
Forum: OpenFOAM Community Contributions December 14, 2012, 04:28
Replies: 32
Views: 21,589
Posted By gschaider
You can only have one BC on a patch at a time....

You can only have one BC on a patch at a time. Have you made sure that groovyBC is actually evaluated on that patch (for instance by introducing a syntactic error into an expression - if it fails...
Forum: OpenFOAM Community Contributions December 12, 2012, 12:24
Replies: 32
Views: 21,589
Posted By gschaider
In this case: no problem about the duplicity....

In this case: no problem about the duplicity. It's hard to spot that it is the same bug if you don't know what is going on (you can't say that about all the bug reports I get here)
Forum: OpenFOAM Community Contributions December 11, 2012, 15:10
Replies: 32
Views: 21,589
Posted By gschaider
I'm afraid that is a bug that showed up a number...

I'm afraid that is a bug that showed up a number of times in the last weeks and already is fixed in the development-branch: as a workaround set

refValue uniform 300;

This will only be used...
Forum: OpenFOAM Community Contributions September 22, 2012, 05:18
Replies: 32
Views: 21,589
Posted By gschaider
Pictures are nice. Numbers are better. But before...

Pictures are nice. Numbers are better. But before I even bother to look at the pictures tell me: are you looking at the cell values or at the point values in paraview? If you want to check the...
Forum: OpenFOAM Community Contributions September 21, 2012, 08:33
Replies: 32
Views: 21,589
Posted By gschaider
Don't know the setup of your problem but there...

Don't know the setup of your problem but there are two things that make it possible for the absolute gradient to be bigger:

- you prescribe the gradient on the face. The values you're referring to...
Forum: OpenFOAM Community Contributions September 19, 2012, 17:21
Replies: 32
Views: 21,589
Posted By gschaider
I don't quite understand what you mean with...

I don't quite understand what you mean with "different" results. That the three variants above give different results (not much a surprise with 3)? Or that there are different gradients in each...
Forum: OpenFOAM Community Contributions August 1, 2012, 17:18
Replies: 32
Views: 21,589
Posted By gschaider
To make this clear: I was speaking of swak, not...

To make this clear: I was speaking of swak, not OF in general



The technology to do something like this during a simulation is there (have a look at the cht-solver and the boundary conditions...
Forum: OpenFOAM Community Contributions May 30, 2012, 13:03
Replies: 32
Views: 21,589
Posted By gschaider
What you want is patch to patch mapping, right?...

What you want is patch to patch mapping, right? Sorry. For the foreseeable future groovyBC will not support this (I've discussed the technical problems elsewhere).

BUT: if you reorganize Var and...
Forum: OpenFOAM Community Contributions May 24, 2012, 11:11
Replies: 32
Views: 21,589
Posted By gschaider
What you're missing is fractionExpression "0"; ...

What you're missing is
fractionExpression "0";
to make it a Neumann condition. See http://openfoamwiki.net/index.php/Contrib_groovyBC


Good documentation? I'm offended ;) . The above link plus...
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