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Interior BC problem when import into Fluent

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Old   March 19, 2009, 10:46
Default Interior BC problem when import into Fluent
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oscar
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lets say i have a turbine, rect region 1, and rect region 2 (as shown below)..rect region 1 encounter whole turbine and rect region 2 encounter whole things(includes turbine and rect region 1)

I used rect region 1 subtract turbine = volume A
then I used rect region 2 suntract A (retain) = volume B

then i used volume mesh for A and B

i set the faces around the rect region 1 as INTERIOR.. but when i import into Fluent (error such as cannot change to interior becuz there is only one adjecent cell thread)

May i know how to solve it? because if i do not to set it as any boundary condition in gambit..it will automatically become WALL in fluent

THX
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Old   March 31, 2009, 21:18
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You may use "interface" instead of "interior", or, you should split region 2 to make sure A and B are connected such that you can define "interior" boundary between them.
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Old   April 1, 2009, 02:09
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If Gambit set your faces as wall, it means that they are not connected
I have a doubt about your second substract with retain
I would split rect2 with A.
clik on plugs-icon, the faces between 2 connected volumes should be pink
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