[hulli]

Hi,


does anybody know how to postprocess a surface that is smaller than my model extends. Basically I want to produce a custom slice through my model, sililar to paraview but without paraview. However, I do not succeed with the expression below using the sampleDict / surfaceDict... Any ideas


yCut
{
// Cutingplane using iso surface
type cuttingPlane;
planeType pointAndNormal;
pointAndNormalDict
{
basePoint (0.01 0.01 0.01);
normalVector (0.0 0.00 1);
// zone (zone1);
}
interpolate false;
}

[Krapf]

Do you use OpenFoam v8? If that's the case, maybe you could use topoSet with planeToFaceZone and faceZoneAverage to achieve what you want.

[hulli]

Hi, thanks ... So for now I was running OF5x so I will try that with OF 8 ... I`ll keep you in the loop

[hulli]

Hi,


actually I have not been able to manage that ... It sucks somewhat because my model is so heavy in terms of memory, so the postprocess with paraview is actually not the way to go ... May be someone else has an idea ...
I just want to corp a slice ...

I also tired that by using a stl but then I only get the intersection between my field and the stl which is not what I want ...
Any other sugestions ???

[olesen]

Originally Posted by hulli

I also tired that by using a stl but then I only get the intersection between my field and the stl which is not what I want ...
Any other sugestions ???

Still not really sure what you want to do, but another possibility might be distance surface sampling with OpenFOAM-v1906 or later. If you specify that the distance is 0, and it should use signed distances, there is a bit of code optimisation that disregards all cells are not close to the surface intersection. For the rest, it builds a distance field and creates an isosurface. Can specify isoAlgorithm (topo | cell | point).
In end effect this causes a cell cutting much like the sampling plane does.