Some of the most common plots to create in CFD-Post include:
Mass Fractions: fuel, O2, products, intermediate species (CO), pollutants (NO)
Turbulent Mixing Time Scale (Eddy Dissipation / Turbulent Kinetic Energy)
Reaction Rates
The variable "<my reaction>.Molar Reaction Rate" is available for every "Single Step" reaction (EDM, FRC or combined model).
Plots of the turbulent Damköhler number (the ratio of the turbulent time scale to the chemical time scale)