boundary conditions

blaid · January 24, 2011, 20:31

hi

What is the difference between interior and interface boundary conditions and when they can be used properly in modeling?
thanks in advance for your answer.

best wishes,

-mAx- · January 25, 2011, 02:18

*interior can be attached on a surface which is inside a fluid domain (understand one connected mesh). For instance in gamit, if your mesh is made of multiple connected volumes, then one interior-bc could be on split-surface
The only purpose of this kind of BC (from my side) is to get some info on this surface (like masfflow, or any average-quantity)

*interface can be used if you want to "glue" 2 meshes without connecting them in gambit, but it is necessarly if you want to use sliding mesh (Single Reference Frame, Multiple Reference Frame, etc...). Typical example: rotor-stator interaction

January 24, 2011, 20:31	boundary conditions	#1
blaid New Member Join Date: Mar 2010 Posts: 12 Rep Power: 17	hi What is the difference between interior and interface boundary conditions and when they can be used properly in modeling? thanks in advance for your answer. best wishes,

January 25, 2011, 02:18		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 42	interior can be attached on a surface which is inside a fluid domain (understand one connected mesh). For instance in gamit, if your mesh is made of multiple connected volumes, then one interior-bc could be on split-surface The only purpose of this kind of BC (from my side) is to get some info on this surface (like masfflow, or any average-quantity) interface can be used if you want to "glue" 2 meshes without connecting them in gambit, but it is necessarly if you want to use sliding mesh (Single Reference Frame, Multiple Reference Frame, etc...). Typical example: rotor-stator interaction __________________ In memory of my friend Hervé: CFD engineer & freerider

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