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Large Eddy Simulation Of Hydrogen-Air Propagating Flames.pdf (978.64 kB)

Large eddy simulation of hydrogen-air propagating flames

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conference contribution
posted on 2014-11-19, 11:29 authored by Mohamed Abdel-Raheem, Salah Ibrahim, Weeratunge MalalasekeraWeeratunge Malalasekera, Assaad R. Masri
The future use of hydrogen as a clean fuel and an energy carrier brings in safety issues that have to be addressed before community acceptance can be achieved. In this regard, availability of accurate modeling techniques is very useful. This paper presents large eddy simulations (LES) of propagating turbulent premixed flames of hydrogen-air mixtures in a laboratory scale combustion chamber. A Dynamic flame surface density (DFSD) model where the reaction rate is coupled with the fractal analysis of the flame front structure, is implemented and tested. The fractal dimension is evaluated dynamically based on the instantaneous flow field. The main focus of the current work is to establish the LES technique as a good numerical tool to calculate turbulent premixed hydrogen flames having an equivalence ratio of 0.7. Developing this capability has practical importance in analyzing explosion hazards, internal combustion engines and gas turbine combustors. The results obtained with the DFSD model are compare well with published experimental data. Further investigations are planned to examine and validate the LES-DFSD model for different flow geometries with hydrogen combustion.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

8th Mediterranean Combustion Symposium, MCS8

Pages

1 - 8 (8)

Citation

ABDEL-RAHEEM, M.A. ... et al., 2013. Large eddy simulation of hydrogen-air propagating flames. IN: Proceedings of the 8th Mediterranean Combustion Symposium, MCS8, Cesme-Izmir, Turkey, 8-13 September 2013, 8pp.

Version

  • VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2013

Notes

This is a conference paper.

Language

  • en

Location

Cesme-Izmir, Turkey

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