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Topological analysis of methane lean premixed flame in turbulent jet flow by direct numerical simulation
Authors:Yu Lv  ZhiHua Wang  He Pei  JunHu Zhou  KeFa Cen
Affiliation:State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering of Zhejiang University, Hangzhou 310027, China
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...
Keywords:direct numerical simulation  premixed flame  turbulence  geometrical structure  
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