低浓度瓦斯脉动燃烧过程的数值模拟  

Numerical simulation about the pulsate combustion process of low concentration gas

作　　者：赵志红[1] 袁隆基[1] 丁艳[2] 李聪[1] 

机构地区：[1]中国矿业大学电力工程学院,江苏徐州221008 [2]中国矿业大学徐海学院,江苏徐州221008

出　　处：《节能》2011年第4期41-43,3,共3页Energy Conservation

摘　　要：选取k-ε湍流双方程模型、概率密度方程(PDF)湍流燃烧模型及部分预混燃烧模型,利用流体分析软件Fluent对煤矿低浓度瓦斯在Helmholtz型脉动燃烧器中的燃烧过程进行了数值模拟。通过对燃烧室内低浓度瓦斯脉动燃烧压力场和速度场的分布进行模拟研究,并与理论燃烧过程相比较,其结果表明:低浓度瓦斯脉动燃烧数值模拟结果符合实际脉动燃烧规律,说明脉动燃烧这一燃烧方式适合低浓度瓦斯的研究利用,并为以后的研究提供参考。The pulsating combustion process of low concentration gas was simulated in the Helmholtz pulse combustor using k-ε turbulence model,probability density equation turbulent combustion model and partially premixed combustion model.Through analyzing the distribution of pressure field and velocity field,the conclusion was obtained that the numerical simulation results agree with actual pulse combustion rule and it is practical and helpful to the utilization of low concentration gas by the way of pulsating combustion.Besides,the results can provide the reference for the later research.

关 键 词：低浓度瓦斯 脉动燃烧 数值模拟 

分 类 号：TD712[矿业工程—矿井通风与安全]