Preparing the PCFM for a Combustion Simulation

Once the PCFM is selected, a CFM and PPDF model will also be registered under Models. So preparations of a PCFM model are really to set up a CFM model and a PPDF model. It is desirable to set up the PPDF model before setting up the CFM model because, once a PPDF table is imported/constructed when setting up the PPDF model, all the required species will be registered under "Gas Component" automatically. These species are needed when setting up a chemical reaction for the CFM model. The following steps can be followed:

Set up the PPDF model. This mainly includes the importing/constructing a PPDF table. When constructing a PPDF table for equilibrium chemistry, it also requires to define the composition of a multi-component reacting mixture and working with PPDF fluid streams.

Set up the CFM model. This mainly includes the CFM model parameters, defining a chemical reaction, working with the unburnt gas fluid stream, and setting the Flame Area Density Ignitor.

Set up initial conditions, boundary conditions and solver parameters for the transport equations involved in the simulation.