| 双路离心喷嘴雾化特性的实验 |
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| 引用本文： | 陈俊,吉洪湖,张宝诚.双路离心喷嘴雾化特性的实验[J].航空动力学报,2010,25(4):774-779. |
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| 作者姓名： | 陈俊 吉洪湖 张宝诚 |
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| 作者单位： | 1.南京航空航天大学 能源与动力学院, 南京 210016 |
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| 摘 要： | 采用相位多普勒粒子分析仪(PDPA)对某型航空发动机双路离心喷嘴的雾化特性进行了实验研究,得到了索太尔平均直径(d32)的空间分布和喷雾锥角.实验结果表明:液滴尺寸随着供油压力的增大而减小,当压力增大到一定程度,液滴尺寸趋于不变;当主、副油路分别单独工作时,随测量横截面与喷口之间距离Z的增加,d32减小;在供油压力不变时,同一个测量横截面内,随着径向距离X的增加d32值变化不大;喷雾锥角基本不随供油压力改变而变化.
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| 关 键 词： | 双路离心喷嘴 雾化粒度 喷雾锥角 |
| 收稿时间： | 2009/3/27 0:00:00 |
| 修稿时间： | 2009/7/16 0:00:00 |
Experimental investigation of spray characteristics of a double line pressure-swirl atomizer |
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| CHEN Jun,JI Hong-hu and ZHANG Bao-cheng.Experimental investigation of spray characteristics of a double line pressure-swirl atomizer[J].Journal of Aerospace Power,2010,25(4):774-779. |
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| Authors: | CHEN Jun JI Hong-hu and ZHANG Bao-cheng |
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| Institution: | 1.College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China2.College of Energy and Power Engineering, Shengyang Institute of Aeronautical Engineering, Shengyang 110136, China |
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| Abstract: | The atomization quality of a double line pressure-swirl atomizer for aero-engine was investigated using phase Doppler particle analyzer(PDPA).The spacial distributions of Sauter mean diameter(d32) and the angle of spray cone were obtained.The results show that: the droplet size decreases with the increase of fuel-supplying pressure,and tends to become invariable when the pressure rises to certain extent;the spray cone angle is basically independent from fuel-supplying pressure;d32 decreases with the widening distance from the spray nozzle,when the main or secondary fuel lines operates respectively;at the same measuring cross section,d32 slightly changes with the radial distance. |
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| Keywords: | double line pressure-swirl atomizer droplet size spray cone angle |
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