Question about fluid-fluid interface

Anna Tian · September 9, 2012, 14:58

Hi,

When I define an fluid-fluid interface, I need to choose GGI surface at each side of those two fluid domains. May i ask could one be larger than another one? ( They have difference size but the large one include the small one. )

ghorrocks · September 9, 2012, 18:58

Yes, a GGI interface can have non-overlap sections. By default this section of the GGI gets a adiabatic slip wall applied to it, but you can change this to any condition you like in the interface conditions.

September 9, 2012, 14:58	Question about fluid-fluid interface	#1
Anna Tian Senior Member Meimei Wang Join Date: Jul 2012 Posts: 494 Rep Power: 16	Hi, When I define an fluid-fluid interface, I need to choose GGI surface at each side of those two fluid domains. May i ask could one be larger than another one? ( They have difference size but the large one include the small one. ) __________________ Best regards, Meimei

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September 9, 2012, 18:58		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,931 Rep Power: 145	Yes, a GGI interface can have non-overlap sections. By default this section of the GGI gets a adiabatic slip wall applied to it, but you can change this to any condition you like in the interface conditions.