# VOF - Patching

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 March 29, 2010, 09:10 VOF - Patching #1 New Member   SK Join Date: Jul 2009 Posts: 8 Rep Power: 10 Halo, I am working with VOF in 3D. In VOF patching is required for secondary phase. In case of simple geometries its works fine with the dimension. When we have some triangular geometry, How can we patch the secondary phase? Sketch of the geometry looks like this.. regards SK

 March 29, 2010, 09:12 #2 Senior Member     Sebastian Gatzka Join Date: Mar 2009 Location: Frankfurt, Germany Posts: 729 Rep Power: 13 Sorry to ask, but what is 'patching'? __________________ Schrödingers wife: "What did you do to the cat? It's half dead!"

 March 29, 2010, 09:16 #3 New Member   SK Join Date: Jul 2009 Posts: 8 Rep Power: 10 In VOF model, while initialising we need to fill the secondary phase in the specific region and the rest with primary phase. This can be done by marking some region using adapt panel. and then using solve->initialise--> patch.

 March 29, 2010, 16:20 #4 Senior Member     Sebastian Gatzka Join Date: Mar 2009 Location: Frankfurt, Germany Posts: 729 Rep Power: 13 Sorry, I'm out. I have made experience with VOF and its theoretical background using OpenFOAM. Your question is too FLUENT-related. I'm afraid I can't help you there. __________________ Schrödingers wife: "What did you do to the cat? It's half dead!"

 March 31, 2010, 10:42 #5 New Member   Martin Join Date: Mar 2010 Posts: 2 Rep Power: 0 doesn't Fluent mark the cells necessary if u just put in the coordinates? I suppose so ...

 March 31, 2010, 12:57 #6 Senior Member     Svetlin Filipov Join Date: Mar 2009 Location: United Kingdom Posts: 176 Rep Power: 10 Define the region as a separate volume and patch it

 April 2, 2010, 01:56 VOF - Patching #7 New Member   sunqiang Join Date: Nov 2009 Posts: 23 Rep Power: 9 You can first set a region in Adapt->region in fluent ,you can either set a quad region or circular one using the input coordinate . Then then you can patchthe after initialization , in the patch panel choose the second phase and set the value to 1 or so. you can check it using display->contour ->phase fraction Hope it helps matt

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