Large-Eddy Simulation of Swirling Pulverized-Coal Combustion

摘要：

A Eulerian-Lagrangian large-eddy simulation (LES) with a Smagorinsky-Lilly sub-grid scale stress model,presumed-PDF fast chemistry and EBU gas combustion models,particle devolatilization and particle combustion models are used to study the turbulence and flame structures of swirling pulverized-coal combustion.The LES statistical results are validated by the measurement results.The instantaneous LES results show that the coherent structures for pulverized coal combustion is stronger than that for swirling gas combustion.The particles are concentrated in the periphery of the coherent structures.The flame is located at the high vorticity and high particle concentration zone.

关键词： large-eddy simulation swirling gas-particle reacting flows pulverized coal combustion

作者: L.Y.Hu L.X.Zhou Y.H.Luo C.S.Xu

作者单位: School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China

会议类型: 国际会议

会议名称: The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 42-45

在线出版日期: 2011-07-19（万方平台首次上网日期，不代表论文的发表时间）