# Conservative Interface flux

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 May 31, 2010, 12:19 Conservative Interface flux #1 New Member   Join Date: May 2010 Posts: 21 Rep Power: 8 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) Last edited by Sas; June 1, 2010 at 08:17.

 May 31, 2010, 18:28 #2 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 12,709 Rep Power: 98 Can you explain what you are trying to model again?

June 1, 2010, 08:20
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Quote:
 Originally Posted by ghorrocks 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.

 June 1, 2010, 18:38 #4 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 12,709 Rep Power: 98 So domain 1 is a solid, domain 2 is a fluid (air), and what is domain 3?

June 2, 2010, 00:39
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 Originally Posted by ghorrocks 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.

Last edited by Sas; June 2, 2010 at 07:25.

 June 2, 2010, 08:44 #6 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 12,709 Rep Power: 98 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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