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Turbulent Premixed Combustion with FGM in COMSOL Multiphysics®
Published in 2013
In this paper a new method for turbulent combustion modeling is introduced in COMSOL Multiphysics®. The method is called Flamelet Generated Manifolds (FGM). The method is based on the concept of flamelets, elemental reaction layers in combustion. The only hypothesis is that the turbulent combustion takes place in the Thin Reaction Zones regime (TRZ). A regime that normally is the case in gas turbines combustion and that assumes that the Kolmogorov scale of turbulence is able to penetrate the preheat zone of the reaction layers. However they are not able to penetrate the chemical conversion layer. This is because their energy is too small and their size is too large. An experimental case is simulated and an acceptable agreement is found.
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