Topological analysis of methane lean premixed flame in turbulent jet flow by direct numerical simulation |
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Authors: | Yu Lv ZhiHua Wang He Pei JunHu Zhou KeFa Cen |
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Affiliation: | State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering of Zhejiang University, Hangzhou 310027, China |
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Abstract: | Direct numerical simulation is employed to investigate the premixed jet flame of methane in lean, combined with a detailed chemical kinetics including 17 species and 58 elemental steps and distinct Lewis numbers. Cold methane-air mixture at 0.55 equivalence ratio is injected into the coflow area with 9500 Reynolds number. The coflow ambient gas is set to be the burnt gas of the methane-air mixture in main jet and temperature is assigned to be the corresponding adiabatic flame temperature 1515 K. The whole s... |
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Keywords: | direct numerical simulation premixed flame turbulence geometrical structure |
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