Low-order modelling of the light-round ignition transient in a premixed annular combustor
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Publication Date
2022Journal Title
Combustion Theory and Modelling
ISSN
1364-7830
Publisher
Informa UK Limited
Type
Article
This Version
AM
Metadata
Show full item recordCitation
Ciardiello, R., Mesquita, L., & Mastorakos, E. (2022). Low-order modelling of the light-round ignition transient in a premixed annular combustor. Combustion Theory and Modelling https://doi.org/10.1080/13647830.2022.2027524
Abstract
This work presents a series of simulations of the light-round process in a premixed
annular combustor, consisting of 18 individual swirl bluff body burners, using improvements
to the previously-published stochastic low-order model SPINTHIR that
mimics flame propagation with a Langevin particle model and continuous new particle
generation. The improvements presented include the effect of dilatation and a
stochastic component to the quenching criterion, resulting in capturing reasonably
well the bending behaviour of the turbulent flame speed with turbulent intensity.
The results showed that the light-round mechanism was well reproduced compared
to experiments. The various versions of the model captured the trend of light-round
time τLR as a function of the mixture’s laminar flame speed with different degrees
of accuracy. Overall, the results here reported improve our low-order capability to
model the ignition transient in complex multi-burner configurations, which can help
the design process of gas turbine combustors.
Keywords
SPINTHIR, low-order simulations, light-round, annular combustor, ignition
Sponsorship
European Union Marie-Curie project ANNULIGHT (Grant Agreement No. 765998), and Clean Sky 2 project PROTEUS (Grant Agreement No
785349).
Funder references
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (765998)
European Commission Horizon 2020 (H2020) Industrial Leadership (IL) (785349)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (765998)
Identifiers
External DOI: https://doi.org/10.1080/13647830.2022.2027524
This record's URL: https://www.repository.cam.ac.uk/handle/1810/332128
Rights
Attribution-NonCommercial 4.0 International
Licence URL: https://creativecommons.org/licenses/by-nc/4.0/
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