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-   -   Conjugate Heat Transfer Issue (http://www.cfd-online.com/Forums/fluent/120828-conjugate-heat-transfer-issue.html)

abc197 July 15, 2013 15:20

Conjugate Heat Transfer Issue
 
Is it possible to assign a constant temperature at interface(and interface_shadow) while coupled boundary condition is assigned for both.
In my case, I assigned a fixed temperature in solid cell zone, but interface temperature comes out much higher than this value. Somebody help please.

yashganatra July 16, 2013 03:25

Hi, I am having some issues with conjugate heat transfer. How did you create coupled walls?

abc197 July 16, 2013 04:03

I think , wall boundary condition should be used for interface in the pre-processor, then fluent will generate itself interface name_shadow boundary. You will see then coupled BC option for both and same should be used for conjugate effects.

ssixr July 21, 2013 14:07

Quote:

Originally Posted by abc197 (Post 439863)
Is it possible to assign a constant temperature at interface(and interface_shadow) while coupled boundary condition is assigned for both.
In my case, I assigned a fixed temperature in solid cell zone, but interface temperature comes out much higher than this value. Somebody help please.

what BC did you give for fluid zone?

abc197 July 21, 2013 23:49

At both fluid side and solid side interfaces, coupled BC is used. In cell zone conditions, for solid zone, I used fixed temperature, while for fluid zone, I did not specify any thing there. I used as usual BCs for fluid zone boundaries.
I guess its not possible to assign constant temperature at interface in conjugate case. We use coupled BCs there and its temperature will vary throughout.


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