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Article

Non-Premixed Filtered Tabulated Chemistry: Filtered Flame Modeling of Diffusion Flames

1
Aero-Thermo-Mechanics Laboratory, École Polytechnique de Bruxelles, Université Libre de Bruxelles, Avenue F.D Roosevelt, 50–CP 165/41, 1050 Brussels, Belgium
2
Institute of Energy and Power Plant Technology, Technical University of Darmstadt, Otto-Berndt-Str. 3, 64287 Darmstadt, Germany
3
Reactive Flows and Diagnostics, Technical University of Darmstadt, Otto-Berndt-Str. 3, 64287 Darmstadt, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Martin Olazar
Fuels 2021, 2(2), 87-107; https://doi.org/10.3390/fuels2020006
Received: 6 January 2021 / Revised: 29 January 2021 / Accepted: 2 February 2021 / Published: 25 March 2021
(This article belongs to the Special Issue Feature Papers in Fuels)
The flame front filtering is a well-known strategy in turbulent premixed combustion. An extension of this approach for the non-premixed combustion context has been proposed by means of directly filtering counterflow diffusion flamelets. Promising results were obtained for the non-premixed filtered tabulated chemistry formalism on 1-D and 2-D unresolved counterflow flame configurations. The present paper demonstrates the soundness of this approach on a 3-D real laminar non-premixed coflow flame. The model results are compared against the direct filtering of the fully resolved laminar diffusion flame showing that the formalism adequately describes the underlying physics. The study reveals the importance of the one-dimensional counterflow flamelet hypothesis, so that the model activation under this condition is ensured by means of a flame sensor. The consistent coupling between the model and the flame sensor adequately retrieves the flame lift-off and satisfactorily predicts the profile extension due to the filtering process. View Full-Text
Keywords: laminar non-premixed combustion; coflow flame; filtered tabulated chemistry laminar non-premixed combustion; coflow flame; filtered tabulated chemistry
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MDPI and ACS Style

Obando Vega, P.J.; Coussement, A.; Sadiki, A.; Parente, A. Non-Premixed Filtered Tabulated Chemistry: Filtered Flame Modeling of Diffusion Flames. Fuels 2021, 2, 87-107. https://doi.org/10.3390/fuels2020006

AMA Style

Obando Vega PJ, Coussement A, Sadiki A, Parente A. Non-Premixed Filtered Tabulated Chemistry: Filtered Flame Modeling of Diffusion Flames. Fuels. 2021; 2(2):87-107. https://doi.org/10.3390/fuels2020006

Chicago/Turabian Style

Obando Vega, Pedro J., Axel Coussement, Amsini Sadiki, and Alessandro Parente. 2021. "Non-Premixed Filtered Tabulated Chemistry: Filtered Flame Modeling of Diffusion Flames" Fuels 2, no. 2: 87-107. https://doi.org/10.3390/fuels2020006

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