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adding fuel data to thermo.db

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Old   December 2, 2014, 12:44
Default adding fuel data to thermo.db
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mathew
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i am doing non premixed combustion modelling. i want to add c10h16 as my fuel. when i am adding this in the boundary condition an error occurs
"Please add species c10h16 to your thermo.db file"
how can i do this
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Old   February 27, 2015, 09:26
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Have you found a solution for this? Even I am having the same issue, I need to add C3H8O as fuel.
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Old   February 27, 2015, 10:49
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no yaar..only way in fluent is that find another fuel which is there in the thermo.db file which has almost the same properties of the fuel u need
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Old   February 27, 2015, 11:07
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ohh ok....another problem which I am facing now is, when i give a particular velocity in the velocity inlet condition, I am getting a very different mass flow rate through the inlet. I used Report-> Fluxes option to see the mass flow rate. Do you know how the mass flow rate is calculated in fluent from the velocity inlet condition?
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Old   March 1, 2015, 13:54
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From my experience, you just need to find those polynomial constants which represent the properties of certain species and add them in your thermo file.

And yes, it is difficult, those depend on some kinds of standard, probably NASA. And we can find some const. provided by them.
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Old   March 1, 2015, 13:56
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mass flow rate = velocity*area*density, maybe you have assigned your velocity to a different inlet.
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