Identification of burning and extinguishing behaviour in spray flames with spark ignition
Paper
Paper/Presentation Title | Identification of burning and extinguishing behaviour in spray flames with spark ignition |
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Presentation Type | Paper |
Authors | Baayens, Jocelyn (Author) and Wandel, Andrew P. (Author) |
Editors | Yang, Yi and Smith, Nigel |
Journal or Proceedings Title | Proceedings of the Australian Combustion Symposium 2015 Proceedings |
ERA Conference ID | 42521 |
Number of Pages | 4 |
Year | 2015 |
Place of Publication | Australia |
Web Address (URL) of Paper | http://www.anz-combustioninstitute.org/ACS2015/ |
Conference/Event | Australian Combustion Symposium 2015 |
Australian Combustion Symposium | |
Event Details | Australian Combustion Symposium Rank C C C C C C C C C C C |
Event Details | Australian Combustion Symposium 2015 Event Date 07 to end of 09 Dec 2015 Event Location Melbourne, Australia Event Venue University of Melbourne |
Abstract | The Gaussian Mixture Model (GMM) is used to analyse Direct Numerical Simulation results for sprays which are ignited using spark ignition. The variables considered in the GMM are the reaction progress variable and its dissipation. It is found that a case which sustained a self-propagating flame produces a burning branch, where a strong flame front is developed, and an extinguishing branch, which contains droplets which are offset from the main spark energy. These branches are distinctly observed through the various clusters that are formed by the GMM. In contrast, cases which ignite but subsequently undergo global extinction do not produce clusters that are distinctly from the burning branch or extinguishing branch near the flame kernel. However, the clustering does display a strong extinguishing branch near the leading edge of the flame front. |
Keywords | Direct Numerical Simulations; spark ignition; spray flames; extinction; Gaussian Mixture Model |
ANZSRC Field of Research 2020 | 401703. Energy generation, conversion and storage (excl. chemical and electrical) |
490302. Numerical analysis | |
400201. Automotive combustion and fuel engineering | |
Public Notes | The copyright of the individual papers contained in this volume is retained and owned by the authors of the |
Byline Affiliations | School of Mechanical and Electrical Engineering |
Computational Engineering and Science Research Centre | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3544/identification-of-burning-and-extinguishing-behaviour-in-spray-flames-with-spark-ignition
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