This section discusses input files that allow FITDAT to provide thermodynamic data fitting coefficients using several different methods. These examples show NIST, Shomate, NASA, and other data formats (DATA CHEM Input Format through VIBE Input Format ).

FITDAT is run from the Ansys Chemkin Interface by selecting it under Utility on the ribbon or the menu bar (see FITDAT Utility for Fitting Polynomials to Thermodynamic Data for more information). After running FITDAT, users may then launch the Chemkin Post-Processor using the View > Graphical Post-processor option. This action will actually result in a warning message and the display of a "Sample Plot", as FITDAT does not produce a typical solution file like other Chemkin problem and FITDAT results will therefore need to be plotted using the Import option in the Chemkin Post-Processor. Select the File > Import option in the Post-Processor. This opens a file browser to allow selecting a species_name.csv file for plotting of fit results. After the file has been selected, further select the following items from the Select the Import File Format dialog: Comma radio button, Skip 2 lines of text (Skip slider control), and Read column titles check box.