Abstract
In this contribution a Large Eddy Simulation together with the Artificially Thickened Flame approach is used to study a well known experimental set-up consisting of a rectangular dump combustor - ORACLES. The major drawback of artificially thickening the flame is that the interaction between turbulence and flame is altered. To compensate for the inability of small vortices to wrinkle the flame a subgrid scale wrinkling model has to be introduced. In this contribution the influence of the subgrid scale wrinkling on the flame front in a high Reynolds number flow is investigated. Moreover the influence of different approximations for the subgrid scale velocity on the prediction of the flow field and flame structure is studied.
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Broeckhoven, T., Freitag, M., Lacor, C., Sadiki, A., Janicka, J. (2007). Investigation of Subgrid Scale Wrinkling Models and Their Impact on the Artificially Thickened Flame Model in Large Eddy Simulations. In: Kassinos, S.C., Langer, C.A., Iaccarino, G., Moin, P. (eds) Complex Effects in Large Eddy Simulations. Lecture Notes in Computational Science and Engineering, vol 56. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-34234-2_25
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DOI: https://doi.org/10.1007/978-3-540-34234-2_25
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