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ISSN オンライン: 2642-0554

NUMERICAL AND MODELING STRATEGIES FOR THE SIMULATION OF THE CAMBRIDGE STRATIFIED FLAME SERIES

Renaud Mercier
Ecole Centrale Paris CNRS, UPR 288, Laboratoire EM2C Grande Voie des Vignes 92290 Chatenay-Malabry, France

Benoit Fiorina
Ecole Centrale Paris CNRS, UPR 288, Laboratoire EM2C Grande Voie des Vignes 92290 Chatenay-Malabry, France

Fabian Proch
Institute for Combustion and Gasdynamics (IVG) Chair for Fluid Dynamics University of Duisburg-Essen Duisburg, 47048, Germany

Andreas M. Kempf
Dept. of Mechanical Engineering Institute for Energy- and Powerplanttechnology TU-Darmstadtr Petersenstr. 30 64289 Darmstadt, Germany; Institute for Combustion and Gasdynamics (IVG) Chair for Fluid Dynamics University of Duisburg-Essen Duisburg, 47048

要約

The Cambridge stratified swirl burner (SwB) has been experimentally investigated for premixed and stratified flame regimes with non-swirling and swirling injection streams. The choice of an appropriate numerical and modeling strategy to capture both stabilization mechanism and turbulent flame propagation is a challenging issue. The present paper presents a comparison between two different approaches. The first one uses a Flame Surface Density (FSD) approach associated to a structured low-Mach code. The second one uses the Filtered Tabulated Chemistry for Large Eddy Simulation (F-TACLES) model implemented in an unstructured low-Mach code. LES results of the non reactive, fully premixed and stratified non-swirling cases are presented and discussed. A good agreement on velocity, mixing and temperature statistics is found for both approaches.