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Sensible Enthalpy vs. Total enthalpy

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Old   June 13, 2012, 15:16
Default Sensible Enthalpy vs. Total enthalpy
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Abhishek Sethi
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Hey Foamers,

I need help in understanding the advantage of OpenFoam 1.7 version with sensible enthalpy over total enthalpy used in OpenFoam 1.5 version . Here is what is posted on the Release notes :

Thermophysical modelling
Development of thermophysical modelling to redefine the thermodynamics in some solvers in terms of sensible enthalpy instead of total (i.e. including chemical) enthalpy; this was done for improved handling of thermodynamics is the case of partially-premixed or non-premixed combustion systems, or to handle systems with non-unity Lewis number.


Does anyone know how does sensible enthalpy equation provides improved handling of thermodynamics in case of partially-premixed or non-premixed combustion systems. Moreover how does sensible enthalpy equation solve the non unity Lewis number systems.

Awaiting a quick reply !
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Old   June 13, 2013, 06:28
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Lars Kiewidt
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I want to bring this question up again. Does anyone have some insight do clarify the advantage of using sensible enthalpy?

Thanks a lot!

Lars
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