以层流对撞扩散火焰为基础，利用层流火焰面模型(laminar flamelet model)的方法生成层流火焰面数据库，分别采用预先设定的几率密度函数(propabality density function，PDF)模型和混合物分数-湍流频率的联合几率密度函数输运模型，将...以层流对撞扩散火焰为基础，利用层流火焰面模型(laminar flamelet model)的方法生成层流火焰面数据库，分别采用预先设定的几率密度函数(propabality density function，PDF)模型和混合物分数-湍流频率的联合几率密度函数输运模型，将火焰而方法应用于甲烷/空气湍流射流扩散火焰结构的模拟计算中．两个模型的计算结果和实验结果进行了比较和分析．展开更多
The computer simulation of the combustion process in blast furnace(BF) stove has been studied by using the k-ε-g turbulent diffusion flame model.The combustion process in blunt annular ceramic burner was calculated b...The computer simulation of the combustion process in blast furnace(BF) stove has been studied by using the k-ε-g turbulent diffusion flame model.The combustion process in blunt annular ceramic burner was calculated by using the software.The profiles of gas and air velocity,temperature of the combustion products,concentration of the components,and the shape and length of the flame during combustion have been researched.Compared with the original annular ceramic burner,the new design of the blunt one improves the mixing of the gas and the air significantly,and shortened the length of the flame.展开更多
文摘以层流对撞扩散火焰为基础，利用层流火焰面模型(laminar flamelet model)的方法生成层流火焰面数据库，分别采用预先设定的几率密度函数(propabality density function，PDF)模型和混合物分数-湍流频率的联合几率密度函数输运模型，将火焰而方法应用于甲烷/空气湍流射流扩散火焰结构的模拟计算中．两个模型的计算结果和实验结果进行了比较和分析．
基金Item Sponsored by National Natural Science Foundation(50104001)Science and Technology Tackle Key Foundation of Inner Mongolia(980307-4)
文摘The computer simulation of the combustion process in blast furnace(BF) stove has been studied by using the k-ε-g turbulent diffusion flame model.The combustion process in blunt annular ceramic burner was calculated by using the software.The profiles of gas and air velocity,temperature of the combustion products,concentration of the components,and the shape and length of the flame during combustion have been researched.Compared with the original annular ceramic burner,the new design of the blunt one improves the mixing of the gas and the air significantly,and shortened the length of the flame.
