尾缘吹气稳定器初始雾化场实验及对燃烧计算的改进  

Experimental study on initial spray field of EBMC flame holder and the improvement in the numerical simulation of combustion

作　　者：马文杰[1] 张羽[1] 杨阳[1] 樊未军[1] 杨茂林[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100083

出　　处：《航空动力学报》2007年第5期714-720,共7页Journal of Aerospace Power

摘　　要：利用激光测雾仪(PDA)对尾缘吹气式火焰稳定器尾缘出口的初始雾化场进行了实验研究,在静止空气中测量了尾缘出口下游不同截面上的各点处的液滴直径、速度等参数,分析了雾化场结构,初步探讨了初始雾化场的特征.同时,根据初始雾化场的实验结果给出燃烧数值模拟的初始雾化条件,并把计算结果与燃烧实验数据和经验数值计算结果进行对比,分析了实验初始雾化场数据对燃烧数值计算的改进效果.结果表明,初始雾化场实验数据对燃烧室出口温度分布及燃烧效率的计算,都有一定程度的改进,其中对燃烧效率计算的改进效果更为明显.An experimental study on initial spray field of edge blowing mixture curtain （EBMC） flame holder was conducted using a particle dynamics analyzer （PDA）. The droplet diameter and velocity of the spray were measured downstream of the flame holder at different locations in static air. The feature of initial spray field was analyzed. The initial spray conditions for the numerical simulation of combustion was given based on the experimental results of initial spray field. The calculated results were compared with the experimental data and the empirical calculated data. The results indicate that the application of initial spray field experimental data to the numerical combustion simulation improves the calculated results of temperature distribution and combustion efficiency, and the improvement in the calculation of combustion efficiency is especially obvious.

关 键 词：航空、航天推进系统 火焰稳定器 尾缘吹气 雾化 数值计算 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]