I have recently created a new thermo.db for PrePDF so that I have more species available to me. I have been using Burcat's Thermodynamic tables as my source which has many species listed in NASA 1971 format. I edited the layout of the data slightly, so that it would load into Fluent, as it uses Chemkin II format, and it wouldn't load without a slight edit. Since then I have had no problems loading PrePDF or creating a PDF file with the new Thermo.db file. However when I load this PDF file into Fluent I get the following errors:

Error: CAR: invalid argument [1]: wrong type [not a pair] Error Object: #f

Error: cx-set-integer-entry: wta[2](integer) Error Object: #f

Error: cx-set-integer-entry: wta[2](integer) Error Object: #f

Has anyone seen any of these errors before, if so could you please help.

Thank you

Andrew Clark

I've seen the error type: not in pair: that is mainly for when the case and data file don't match or case file some how change its geometric criteria or position or identity.

Alamgir

Andrew,

Please see chapter 14.5 of the Fluent manual, "Adding New Species to the prePDF Database ". Essentially, from prePDF you need to write out a thermodb.scm from the File -> Write -> Thermodb... menu in prePDF.

Good luck!

[tanaji]

I have Chemkin Mechanism files of 93 species... I am using Non Premixed combustion model...

can anybody tell me how to prepare the PDF table..