预混燃烧中火焰长度的变化规律研究  

Research for Length Variation of Flame in Premixed Combustion

作　　者：徐琼辉[1] 詹杰民[1] 

机构地区：[1]中山大学应用力学与工程系,广东广州510275

出　　处：《中山大学学报（自然科学版）》2008年第5期37-43,共7页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(40476012)

摘　　要：通过采用不同的组合模型进行湍流燃烧数值模拟的研究,筛选出能与实验结果相吻合的模型,给出了适合该模型系统的网格密度。探讨预混燃烧中火焰长度的影响因素,结果表明:要控制火焰长度应全面考虑空气消耗系数的影响。Numerical simulation of turbulent combustion is performed by using different model combinations. The model combinations are chosen by comparing experimental results. Suitable grid spacings of the numerical system are investigated. Factors influencing on flame length in premixed combustion are discussed, and it is indicated that the influence of air consumption coefficient should be comprehensively considered to control length of flame.

关 键 词：湍流燃烧 网格密度 火焰长度 

分 类 号：TK16[动力工程及工程热物理—热能工程]