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THMT-12. Proceedings of the Seventh International Symposium On Turbulence Heat and Mass Transfer
September, 24-27, 2012, Palermo, Italy

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal


ISBN Print: 978-1-56700-302-4

ISSN: 2377-2816

LES/CMC of blow-off in a liquid fueled swirl burner

pages 317-328
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.360
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要約

Large Eddy Simulations of two-phase combustion with the Conditional Moment Closure sub-grid model have been performed for flow conditions corresponding to stable and blow-off regimes in a swirl heptane spray burner. In the case of stable flame (i.e. low velocity), the predicted location and shape of the flame agree well with high-speed camera images from an experiment. Using model constants previously calibrated against pilot jet flame with localised extinction, we obtain that at the experimentally determined blow-off velocity, the predicted flame also blows-off, demonstrating that the LES/CMC can capture global extinction of a realistic flame.

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