[dankam]

Hello everyone,

I have a fluid domain (box) with a tilted rectangular panel that is cut out of the fluid domain. I have imported my mesh from SALOME with all the necessary named selections for my boundaries.

For automation purposes, however, I want to split the upper and lower surfaces of my tilted panel patches, and I'm struggling. Using topoSet, I have created faceSets for my panels, but when I try to split them based on the normal vector, and even when I specify in the source info that I want my panel to be the source faceSet, it just takes eveything that corrsponds to the normal, including internal surfaces.

Any help is much appreciated!

actions
(

	{
		name	solarPanel1;
		type	faceSet;
		action	new;
		source	patchToFace;

		patch solarPanel1;
	}

	{
		name	upper1;
		type	faceSet;
		action	new;
		source	normalToFace;
		
		sourceInfo
		{
			faceSet	solarPanel1;
			normal	(.49999961698725573916 0 .86602562491683672008);
			cos	0.01;
		}
	}
);

[GerhardHolzinger]

Yes, the behaviour you describe is exactly what topoSet is supposed to do.


Create a faceSet from the patch, and create a faceSet from the face-normals.


You seem to be under the impression, that providing faceSet solarPanel1 in the sourceInfo of your second definition implicitely results in a Boolean operation. Your observations imply that this is not the case, and I am not sure whether this is supposed to happen anyway. The annotated topoSetDict of OpenFOAM-12 does not contain anything that might suggest something like this could work. Is this a hallucination of ChatGPT?


What you need, is to explicitly perform a Boolean operation with the action subset.