Extension of the FGM technique for autoignition and preferential diffusion effects

Ebrahim Abtahizadeh, R. Bastiaans, P. de Goey, J. van Oijen

Research output: Contribution to conferencePaper

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Abstract

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.
Original languageEnglish
Publication statusPublished - 2015
EventInternational workshop on Model Reduction in Reacting Flows - Cottbus, Germany
Duration: 28 Jun 20151 Jul 2015

Workshop

WorkshopInternational workshop on Model Reduction in Reacting Flows
Abbreviated titleIWMRRF
CountryGermany
CityCottbus
Period28/06/151/07/15

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Fuel burners
Stabilization
Ignition
Methane
Hydrogen

Bibliographical note

This was presented at the 5th International Workshop on Model Reduction in Reacting Flows (IWMRRF) held at the Brandenburg University of Technology in Cottbus, Germany.

Cite this

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.

Extension of the FGM technique for autoignition and preferential diffusion effects. / Abtahizadeh, Ebrahim; Bastiaans, R.; de Goey, P.; van Oijen, J.

2015. Paper presented at International workshop on Model Reduction in Reacting Flows, Cottbus, Germany.

Research output: Contribution to conferencePaper

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, 28/06/15 - 1/07/15, .
Abtahizadeh E, Bastiaans R, de Goey P, van Oijen J. Extension of the FGM technique for autoignition and preferential diffusion effects. 2015. Paper presented at International workshop on Model Reduction in Reacting Flows, Cottbus, Germany.
Abtahizadeh, Ebrahim ; Bastiaans, R. ; de Goey, P. ; van Oijen, J. / Extension of the FGM technique for autoignition and preferential diffusion effects. Paper presented at International workshop on Model Reduction in Reacting Flows, Cottbus, Germany.
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abstract = "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.",
author = "Ebrahim Abtahizadeh and R. Bastiaans and {de Goey}, P. and {van Oijen}, J.",
note = "This was presented at the 5th International Workshop on Model Reduction in Reacting Flows (IWMRRF) held at the Brandenburg University of Technology in Cottbus, Germany.; International workshop on Model Reduction in Reacting Flows, IWMRRF ; Conference date: 28-06-2015 Through 01-07-2015",
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AU - Bastiaans, R.

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AB - 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.

M3 - Paper

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