Area of patch

eivind · April 6, 2017, 10:29

Hi!
I need to know the area of my inlet patch in order to be able to specify the average velocity from a giver flow rate.
I'm using the mappedPatch BC for the inlet with an average velocity, and a snappyHexMesh-ed mesh.

Is there a neat way to find the area of a patch?

Cheers,
Eivind

alexeym · April 6, 2017, 15:52

Hi,

If you have field, which is constant over the patch, you can use

Code:

postProcess -func 'patchIntegrate(name=inlet,field)'

Or you can open case in paraview, select inlet patch in 'Mesh regions' and use Integrate Variables filter. In SpreadSheetView, you select Attribute 'Cell Data', and there is column Area with area of the patch.

April 6, 2017, 10:29	Area of patch	#1
eivind New Member Eivind Sønnesyn Willmann Join Date: Jan 2017 Posts: 5 Rep Power: 9	Hi! I need to know the area of my inlet patch in order to be able to specify the average velocity from a giver flow rate. I'm using the mappedPatch BC for the inlet with an average velocity, and a snappyHexMesh-ed mesh. Is there a neat way to find the area of a patch? Cheers, Eivind Luttappy likes this.

April 6, 2017, 15:52		#2
alexeym Senior Member Alexey Matveichev Join Date: Aug 2011 Location: Nancy, France Posts: 1,930 Rep Power: 38	Hi, If you have field, which is constant over the patch, you can use Code: postProcess -func 'patchIntegrate(name=inlet,field)' Or you can open case in paraview, select inlet patch in 'Mesh regions' and use Integrate Variables filter. In SpreadSheetView, you select Attribute 'Cell Data', and there is column Area with area of the patch. wyldckat, salehi144, wolfindark and 6 others like this.

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