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-   -   Conservative Interface flux (http://www.cfd-online.com/Forums/cfx/76632-conservative-interface-flux.html)

Sas May 31, 2010 12:19

Conservative Interface flux
 
Should convey heat radiation from the fluid to another fluid through the air, put the 2 interfaces with the regime - Conservative Interface flux. The air begins to heat up to 3000 K (!) for unknown reasons.
Conservative Interface flux takes into account whether the coefficient of absorption / emission given for materials?

Have I asked the type of interface?

http://depositfiles.com/files/c7djkwe0w (Heat transfer.cfx)

http://imagepost.ru/images/139/Clipboard01.jpg

ghorrocks May 31, 2010 18:28

Can you explain what you are trying to model again?

Sas June 1, 2010 08:20

Quote:

Originally Posted by ghorrocks (Post 261071)
Can you explain what you are trying to model again?

I simulate the heating of the upper domain (1) through the air (2) of the domain (3).
In the upper domain (1) moves the material from the initial temperature 1000 C, the air domain (2) moves with the initial temperature of 450 C.
In the domain (3) flowing the heated gas with a temperature of 2000 C.

Must be correctly configured interefeysy between domains so that the top domain (1) received warmly by heat and radiation and, accordingly, he could transfer heat.

ghorrocks June 1, 2010 18:38

So domain 1 is a solid, domain 2 is a fluid (air), and what is domain 3?

Sas June 2, 2010 00:39

Quote:

Originally Posted by ghorrocks (Post 261268)
So domain 1 is a solid, domain 2 is a fluid (air), and what is domain 3?

all domen fluid.

in 1 domen - sand (viscous as water)
in 2 domen - air
in 3 domen - hot gaz.

ghorrocks June 2, 2010 08:44

You clearly have not set up the thermal conditions correctly. You must have missed something to take the heat away from the air. I don't have time to do a detailed debug of your simulation, sorry.


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