Flamelet Generated Manifolds (FGM) has been extended to account for preferential diffusion effects and autoignition. Such development is made in order to study stabilization mechanism of turbulent lifted CH4/H2 flames of the Delft JHC burner. In this burner, methane based fuel has been enriched from 0 to 25% of H2. The main stabilization mechanism of these turbulent flames is autoignition based on the formation of ignition kernels which is very challenging to model. Addition of hydrogen makes the modeling even more challenging due to preferential diffusion effects. The proposed FGM model is implemented in DNS of unsteady mixing layer and LES of lifted jet flames. It is revealed that the proposed model has the capability to accurately predict main features of CH4/H2 turbulent flames.
|Publication status||Published - 2015|
|Event||International workshop on Model Reduction in Reacting Flows - Cottbus, Germany|
Duration: 28 Jun 2015 → 1 Jul 2015
|Workshop||International workshop on Model Reduction in Reacting Flows|
|Period||28/06/15 → 1/07/15|
Bibliographical noteThis was presented at the 5th International Workshop on Model Reduction in Reacting Flows (IWMRRF) held at the Brandenburg University of Technology in Cottbus, Germany.
Abtahizadeh, E., Bastiaans, R., de Goey, P., & van Oijen, J. (2015). Extension of the FGM technique for autoignition and preferential diffusion effects. Paper presented at International workshop on Model Reduction in Reacting Flows, Cottbus, Germany.