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Old   March 13, 2006, 06:38
Default Adding species in database
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AdN
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Hello,

I want to know if someone could help me to add new species in the database of PrePDF? I want to put NH4NO3 in the database, because I need it to model combustion of this solid. Thank you
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Old   March 14, 2006, 06:06
Default Re: Adding species in database
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cg
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In Fluent 6.2 or later, add your species to the thermo.db file in Fluent.Inc\cpropep\data directory. The data is in the NASA format.
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Old   December 24, 2012, 23:36
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sinan
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Hello,

I want to know if someone could help me to add new species in the database of PrePDF? I want to put c16h29 in the database, because I need it to model combustion of this fluid . Thank you
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Old   February 23, 2013, 08:34
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Prakash Ghose
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I also want to use C7H8. Can I know what are the meaning of coefficients used in thermo.db for different fuel?
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Old   May 19, 2017, 03:15
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Shamoon Jamshed
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I want to add liquid oxygen into the data base. The file thermo.db is too confusing. The first line gives the element name , its code, state(S,L or G) and temperature range.
in thermo.db , Oxygen is there with G as its state, so I can easily put O(L) and put another L instead of G to enter my Liquid oxygen.
Problem is that in thermo.db, some of elements , like Al(S) which is a solid has a 'G' in place of state where it should be S.
NASA guides are quite old and do not say something on it. It appears that G is for species if formed after combustion where they will obviously in gaseous form. Please guide me in this regard. It would also mean that I do not need to enter O(liq) because the temperature in the first line will tell solver to use oxygen in liquid or gaseous form.
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