Generating the Steady Laminar Flamelet Table

After selecting the appropriate physics models, you import the reduced chemical mechanism, define the composition of the fluid streams, and generate the SLF table that the SLF model requires.

  1. To create the Chemistry Definition:
    1. Right-click the Fluid Volume > SLF Table Generator > Table Chemistry Definition node and select Import Chemistry Definition (Chemkin format).
    2. In the Import Chemkin Files dialog, import the files that are specified in the table below from http://spark.engr.uconn.edu/mechs/C12-lumped.zip:
      Chemical Mechanism File \C12-lumped\sk31\chem.inp
      Thermodynamic Properties File \C12-lumped\sk31\therm.dat
      Transport Properties File \C12-lumped\sk31\tran.dat
    3. Click OK.
  2. Expand the SLF Table Generator > Fluid Streams node and set the following properties:
    Oxidizer Composition Specification Mole Fraction
    Fluid Stream Components O2: 0.209
    N2: 0.791
    Temperature 500.0 K
    Fuel Composition Specification Mole Fraction
    Fluid Stream Components NC12H26: 1.0
    Temperature 300.0 K
To save computational memory and disk space, only species that are defined as species for tabulation are stored in the flamelet table. By default, the species that are defined in the fluid streams are made available for post-processing. When the Radiation model is activated, CO2 and H2O are also included. You can also include other species that you are interested in monitoring—for example, carbon monoxide emissions.
  1. Expand the SLF Table Generator > Parameters node and set the following properties:
    Node Property Setting
    Species for Tabulation Species CO (in addition to the current selection)
    Numerical Settings
    Table Dimensions
    Heat Loss Ratio Use Adaptive Number of Grid Points deactivated
    Number of Grid Points 1
  2. To generate the steady laminar flamelet table, right-click the SLF Table node and select Generate Flamelet Library and Construct Table.
    A progress bar appears below the tree.
  3. When the table generation is complete, click Save.