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-   -   solid conduction problem bc's (http://www.cfd-online.com/Forums/fluent/50726-solid-conduction-problem-bcs.html)

phiz March 1, 2009 10:58

solid conduction problem bc's
 
Hi everybody,

I'm solving a pure solid conduction 3D problem. In 2D I've learned that one should make the surface between 2 different materials as interior, however for some reason in 3D this does not work, as Fluent states that there's "only one adjacent cell thread". Does anybody have a solution for this? I don't want wall bc's because I want Fluent to calculate the temperature itself (the outside faces of the model have wall bc's). Thanks in advance.

Ralf Schmidt March 1, 2009 11:53

Re: solid conduction problem bc's
 
Hi!

see:

http://www.cfd-online.com/Forum/fluent.cgi?read=64246

Ralf

phiz March 1, 2009 12:42

Re: solid conduction problem bc's
 
Thanks Ralf! However, does patching imply that other boundary conditions will be overruled?

Ralf Schmidt March 2, 2009 08:49

Re: solid conduction problem bc's
 
Hi!

the BC at the boundaries to the solid are as they were.

I don't know about the BCs of the solid itself... I guess, they will be conserved - as long as it is not a fixed temperature BC :)

Ralf

phiz March 2, 2009 17:28

Re: solid conduction problem bc's
 
ah it was a fixed temperature BC however I solved the problem already, I seperated all necessary faces and remeshed, this way I can set the walls to interior... hard work but it paid off tnx anyway :)


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