Abstract
A series of Large Eddy Simulations (LES) of non-reacting flow in a swirl burner has been performed. The configuration consists of two unconfined co-annular jets at a Reynolds number of 81500. The flow is characterized by a Swirl number of 0.93. Two cases are studied differing with respect to the axial location of the inner pilot jet. It was observed in a companion experiment (Bender and Büchner, 2005) [1] that when the inner jet is retracted the flow oscillations are considerably amplified. The present simulations allow to understand this phenomenon: the recirculation zone and the jet interact in such a way that large scale coherent structures are generated. The resulting spectra correspond well to the experimental data.
Cite
CITATION STYLE
García-Villalba, M., Fröhlich, J., & Rodi, W. (2007). Investigation of the influence of the inlet geometry on the flow in a swirl burner. In High Performance Computing in Science and Engineering 2006 - Transactions of the High Performance Computing Center Stuttgart, HLRS 2006 (pp. 381–390). Springer Verlag. https://doi.org/10.1007/978-3-540-36183-1_28
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