[ANSYS Meshing] creating coupled boundary condition to examine conjugated heat transfer

rasekh64 · May 27, 2013, 09:37

Dear all,

I am going to simulate convective heat transfer between fluid and solid parts in ansys-fluent. I have to do meshing in Ansys-mesher. In case of generating mesh in Gambit, I don’t have any problem as I can define connection between solid and fluid interfaces so that fluent consider one surface as a shadow wall. However, I am a bite confused working with ansys mesher. In fact, it also creates connection between fluid and solid part automatically, but surprisingly fluent doesn’t consider one of the walls as a shadow-wall so I am unable to define coupled boundary condition.

I would be more than happy if anybody help me to solve this problem.

Best,
Alireza

ftab · June 3, 2013, 12:01

Hi Alireza,
Why don't you simply change them to interfaces and then defining the mesh interfaces (the option bellow the BC) in the main menu, select the option for coupled wall.
I do not know it is a valid action, but if Fluent considers them as COUPLED WALL, it is exactly what you want to do.

rasekh64 · June 5, 2013, 17:29

hi,

I already found the solution. In order to assess the conjugated heat transfer between two surfaces, one should integrate two parts as a one body in the Ansys design modeler!

I am afraid the way you recommended doesn't work.

thanks in advance,

Alireza

Quote:

Originally Posted by ftab

Hi Alireza,
Why don't you simply change them to interfaces and then defining the mesh interfaces (the option bellow the BC) in the main menu, select the option for coupled wall.
I do not know it is a valid action, but if Fluent considers them as COUPLED WALL, it is exactly what you want to do.

thermal energy · March 13, 2014, 10:13

hello dear friends,

ı have a question about coupled boundry condition. ı need help. thank you. good work.

Should i activate coupled option for both wall and wall-shadow, for each side of the two-sided wall?

May 27, 2013, 09:37	creating coupled boundary condition to examine conjugated heat transfer	#1
rasekh64 New Member Alireza Join Date: May 2013 Posts: 14 Rep Power: 13	Dear all, I am going to simulate convective heat transfer between fluid and solid parts in ansys-fluent. I have to do meshing in Ansys-mesher. In case of generating mesh in Gambit, I don’t have any problem as I can define connection between solid and fluid interfaces so that fluent consider one surface as a shadow wall. However, I am a bite confused working with ansys mesher. In fact, it also creates connection between fluid and solid part automatically, but surprisingly fluent doesn’t consider one of the walls as a shadow-wall so I am unable to define coupled boundary condition. I would be more than happy if anybody help me to solve this problem. Best, Alireza

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June 3, 2013, 12:01		#2
ftab Member Ftab Join Date: Sep 2011 Posts: 87 Rep Power: 15	Hi Alireza, Why don't you simply change them to interfaces and then defining the mesh interfaces (the option bellow the BC) in the main menu, select the option for coupled wall. I do not know it is a valid action, but if Fluent considers them as COUPLED WALL, it is exactly what you want to do.

March 13, 2014, 10:13		#4
thermal energy Member Join Date: Jan 2014 Location: Turkey Posts: 37 Rep Power: 12	hello dear friends, ı have a question about coupled boundry condition. ı need help. thank you. good work. Should i activate coupled option for both wall and wall-shadow, for each side of the two-sided wall?