Large Eddy Simulation of Bluff Body Stabilised Premixed Flames Using Flamelets
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Publication Date
2017-09-17Conference Name
10th Mediterranean Combustion Symposium
Type
Conference Object
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AM
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Massey, J. C., Langella, I., & Swaminathan, S. (2017). Large Eddy Simulation of Bluff Body Stabilised Premixed Flames Using Flamelets. 10th Mediterranean Combustion Symposium. https://doi.org/10.17863/CAM.43219
Abstract
Large Eddy Simulations of an unconfined turbulent lean practical flame stabilised behind a bluff body burner are computed using structured and unstructured numerical solvers. Unstrained flamelets are used as the sub-grid scale combustion closure using constant and dynamic formulations to model the flame curvature parameter βc. The model uses a presumed probability density function to calculate the filtered reaction rate. The aim of this study is to determine the numerical set-up that provides the most reliable results for the flame that is furthest from blow-off conditions (A1). This work will lead to modelling the flame closest to blow-off (A4) and the flame at blow-off conditions, since these flames are highly unstable. Comparisons will be drawn with experimental data obtained using PIV, OH chemiluminescence and OH-PLIF techniques.
Sponsorship
EPSRC DTP studentship (RG80792)
Funder references
Engineering and Physical Sciences Research Council (1619171)
Identifiers
This record's DOI: https://doi.org/10.17863/CAM.43219
This record's URL: https://www.repository.cam.ac.uk/handle/1810/296174
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