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average interior temperature less than the operating temperature

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Old   March 30, 2011, 00:58
Default average interior temperature less than the operating temperature
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Naher
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Dear All,
I am simulating an enclosure with one wall-constant heat flux, another wall-mixed boundary condition. I am considering s2s model and boussinesq approximation. And I have two pressure inlet and one pressure outlet. But I am getting the average interior temperature less than the operating temperature. How does it possible? Can anybody please help me?
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Old   March 30, 2011, 03:38
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That is not impossible.
Temperature is determined by heat balance of the system and constitutive equation, not the operating temperature, which is only used in Boussinesq model.
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Old   March 30, 2011, 21:26
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Dear xrs333
Thank you very much for your comment … In my case heat is added to the system, so ambient temperature, which is defined as operating temperature must be the minimum temperature..isn’t it?
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Old   March 31, 2011, 07:57
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Ambient temperature is not necessarily defined as operating temperature.
Check for these of your model, please:
partial enclosure temperature
ExternalBlackBodyTemperatureMethod
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Old   March 31, 2011, 23:14
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Thanks for your reply. I already checked the external black body temperature and partial enclosure temperature (although, I do not have any non-participating wall in the model). I have defined these temperatures as 300 K. However, the result for the average interior temperature is less than 300 K.
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