[Other] mesh interface for multi region

Mohammad Jam · December 3, 2016, 10:46

Hi

I want to mesh two region contain a cylinder inside a cube, so there is two region :
first , cylinder . second, region between cylinder and cube.
when i mesh both region by gambit i define one interface between them.

i use chtMultiRegionFoam as solver.

problem;;

conduction heat transfer between these regions.
But temoerature distribution shows that there is no connection between these region because one region doesnt sense the heat and temperature rise.

question::
1. how to mesh or define interface in this problem to connect these regions.

any idea is welcome.

best regards.

DoQuocVu · December 4, 2016, 21:24

Hi Jam,

what boundary condition have you defined for the interface between 2 regions?

Mohammad Jam · December 5, 2016, 03:52

Quote:

Originally Posted by DoQuocVu

Hi Jam,

what boundary condition have you defined for the interface between 2 regions?

Hi
I defined internal boundary condition in gambit,
Regards

DoQuocVu · December 5, 2016, 07:23

I've not used gambit so i'm not sure about how it handle the boundary condition, but if i'm not wrong you can try the cyclic boundary condition in this case because it allows two faces to communicate and exchange the data.

Regards

December 3, 2016, 10:46	mesh interface for multi region	#1
Mohammad Jam Member Join Date: Oct 2015 Location: montreal- canada Posts: 46 Rep Power: 10	Hi I want to mesh two region contain a cylinder inside a cube, so there is two region : first , cylinder . second, region between cylinder and cube. when i mesh both region by gambit i define one interface between them. i use chtMultiRegionFoam as solver. problem;; conduction heat transfer between these regions. But temoerature distribution shows that there is no connection between these region because one region doesnt sense the heat and temperature rise. question:: 1. how to mesh or define interface in this problem to connect these regions. any idea is welcome. best regards.

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December 4, 2016, 21:24		#2
DoQuocVu Member Vu Join Date: Nov 2016 Posts: 42 Rep Power: 9	Hi Jam, what boundary condition have you defined for the interface between 2 regions?

December 5, 2016, 07:23		#4
DoQuocVu Member Vu Join Date: Nov 2016 Posts: 42 Rep Power: 9	I've not used gambit so i'm not sure about how it handle the boundary condition, but if i'm not wrong you can try the cyclic boundary condition in this case because it allows two faces to communicate and exchange the data. Regards