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Old   January 12, 2013, 03:47
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I am in a project to analyze the Heat Transfer in a tube with thickness. The fluid (gas) is flow from outer portion of the tube and fluid (steam) flows inside tube. The tube has thickness with solid (steel).
I created mesh where i define inner face, outer face of tube and volume of thickness.
The conditions are: for gas flow, two inlets with velocity (domain with gas inlet temperature) and outlet to atmospheric pressure. For steam flow, one inlet through tube with mass flow rate (domain with steam inlet temperature) and outlet with steam pressure.
I leave the domain interface as default. Is this is correct? Because, I cant get expected result. The results shows, steam outlet temperature exactly as that of gas inlet and gas leave at same temperature of inlet gas. This is not possible.
I dont know about how the domain interfaces are defined well. Is there is need to change in solver cfx.

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Old   January 12, 2013, 08:39
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Make sure you have activated "heat transfer" in the interfaces tab, as chosen conservative interface flux on the domain interface side 1 and 2
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