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[GAMBIT] 4 Pipes

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Old   May 11, 2016, 13:50
Default 4 Pipes
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mehdi benkabouche
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Hi , i have to model a geometry of 4 pipes like this



Q : can i make 4 T-Junction pipes & unite them with interface boundary ? if yes , is there any tuto on T-junction pipe ?

Thank you
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Old   May 12, 2016, 01:17
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Maxime Perelli
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here a tutorial on 3 pipes intersections:
https://www.sharcnet.ca/Software/Gam...guide/tg03.htm

Why do you want to unite them? If you create them from scratch, you create 4 pipes, and unite them, that's it.
What do you mean with interfaces? (interface in gambit, is't an interface between 2 fluids, but an interface between 2 meshes which are disconnected->interpolation)
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Old   May 12, 2016, 15:23
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Is this a good mesh ?

http://www.filedropper.com/defaultid1508
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Old   May 13, 2016, 02:04
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just increase number of cells in the small pipes (at least 8-10 in the diameter)
Then it is ok, but it depends on your physics, especially turbulence modelling near the walls (check theory / y+)
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Old   May 13, 2016, 15:37
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the fluid don't move through the circle between big pipe and the small one

please help
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Old   May 17, 2016, 02:26
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can you post a picture?
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