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The value used for reference temperature in the sensible enthalpy calculation

- October 11, 2021 at 7:01 am
  
  唐靖博
  Subscriber
  
  For the pressure-based solver Tref is 298.15K except for PDF models. For the density-based solver Tref is 0K except when modeling species transport with reactions. But I found that the enthalpy of oxygen is not zero at the temperature of 298.15K when using pressure-based solver.
- October 11, 2021 at 8:45 am
  
  Amine Ben Hadj Ali
  Ansys Employee
  
  If species model is active you will need to check the value of formation enthalpy: if this is not zero you will have a non zero enthalpy.
- October 11, 2021 at 9:32 am
  
  唐靖博
  Subscriber
  
  Oxygen is an elementary substance whose standard enthalpy of formation is zero.
- October 11, 2021 at 2:28 pm
  
  Amine Ben Hadj Ali
  Ansys Employee
  
  Then please add a screenshot of the Flux Report for Heat and the inlet boundary.

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