南京航空航天大学学报2012，Vol.44Issue(3)：307-312,6.
新型预燃室的数值与实验研究
Numerical and Experimental Investigation of New Style Precombustion Chamber
宫继双 1范育新 1程晓军 1齐海帆 1王家骅 1张靖周1
作者信息
- 1. 南京航空航天大学能源与动力学院 南京 210016
- 折叠
摘要
Abstract
A new style precombustion chamber with double swirl air-blast atomizer is designed in order to satisfy the compact structure of combustor. A ignitor is fixed in the center of head of the chamber. The internal flow character of the chamber is obtained using the numerical method. Numerical results display very large circumferential speed and axial recirculation region due to its double swirl. The performance of the precombustion chamber including the Sauter mean diameter (SMD) of the spray and the range of air-fuel ratio (AFR) in which the fuel-air mixture (FAM) can be ignited by spark is given through a series of experiment. The results show that the value of SMD is less than 10 μm when AFR is greater than 3. 5. The range of Mach number in which FAM can be ignited is 0. 37～0. 84.关键词
双旋流气动雾化喷嘴/预燃室/索太尔平均直径/稳定点火范围Key words
double swirl air-blast atomizer/precombustion chamber/ Sauter mean diameter/ stable ignition range分类
航空航天引用本文复制引用
宫继双,范育新,程晓军,齐海帆,王家骅,张靖周..新型预燃室的数值与实验研究[J].南京航空航天大学学报,2012,44(3):307-312,6.
