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Old   January 3, 2002, 05:34
Default Temperature Model
  #1
Julie Polyakh
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Hi! As always I have a question and it is: There are two options for Temperature Models for AIR: 1) Enthalpy - Thermal and 2) Enthalpy - Chemico-Thermal. When each of them should be used?
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Old   January 4, 2002, 05:50
Default Re: Temperature Model
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john
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Just the definition of the enthalpy is different: the two forms reduce to the same equation if no chemical reaction occurs. So without chemical reaction, you can always choose thermal option.
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Old   January 5, 2002, 16:29
Default Re: Temperature Model
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Julie Polyakh
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I think that you are wrong because after I've set the 'Thermal' option for the enthalpy computation the temperature values are OK (they where x2 higher than they shoul be). Now there is another problem: no convergence after 1000 iterations (the enthalpy residual ~0.04).
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Old   January 17, 2002, 09:17
Default Re: Temperature Model
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Jing
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There are four choices: STATIC, TOTAL, ROTHALPY and STAGNATION under the item of "Thermal". Have you defined a right one?
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