To evaluate characteristics of the Flamelet/Progress-Variable approach (FPV) and Flamelet-Generated
Manifolds method which can consider a detailed chemical reaction mechanism, a combustion simulation was
performed in a laminar counter-flow diffusion flame. While the numerical solutions of the FPV reproduced
the measurements and almost completely agreed with those of the detailed chemical reaction mechanism, the
numerical solutions of the FGM method overpredicted the measurements of CO mole fraction and underpredicted
the ones of CO2 especially in fuel-rich region, and differed from those of the detailed chemical reaction mechanism.
This is because the flamelet table of the FGM indicates the state close to chemical equilibrium and overpredicts
dissociation of CO2 when the combustion reaction sufficiently progresses