| 吴宗霖，马洪安，付淑青，杨聪，曾文.单路单喷口RP-3 航空煤油雾化特性试验研究[J].航空发动机,2021,47(S1):40-45 |
| 单路单喷口RP-3 航空煤油雾化特性试验研究 |
| Test Study on Spray Characteristics of RP-3 Aviation Kerosene of Simplex Swirl Atomizer |
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| DOI： |
| 中文关键词: 雾化特性 锥角 油滴平均速度 索特尔平均直径 韦伯数 RP-3航空煤油 航空发动机 |
| 英文关键词:spray characteristics cone angle droplet velocity mean Sauter mean diameter Weber number RP-3 aviation kerosene aeroengine |
| 基金项目:国家自然科学青年基金（51506132、51606129）资助 |
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| 中文摘要: |
| 为了获取单路单喷口喷嘴的雾化特性及其影响因素，在综合试验台上进行供油压力为200～600 kPa的某喷嘴雾化特性
试验，得到RP-3航空煤油喷雾雾化锥角，使用相位多普勒粒子分析仪测得喷口处雾化粒度和油滴平均速度。结果表明：在不同油
压下的雾化锥角与韦伯数呈正比；在同一水平截面内，雾锥中心的油滴平均速度较大，且油滴平均速度也与韦伯数呈正比；索特尔
平均直径与韦伯数呈反比；喷口处索特尔平均直径最小；通过准则方程得到单路单喷口的RP-3航空煤油索特尔平均直径的关系
式为D32 = 58014d0 0.18416 v0.08768ΔP-0.45176；从关系式可见，压力对索特尔平均直径影响较大，压力的升高能迅速降低雾化粒度。 |
| 英文摘要: |
| In order to obtain the spray characteristics and influencing factors of simplex swirl atomizer，the spray characteristics of a at?
omizer was tested on the comprehensive test bench with a pressure of 200～600 kPa. The atomization cone angle of RP-3 aviation kerosene
spray was obtained and the atomization particle size and droplet velocity mean at the nozzle were measured by Phase Doppler Particle Ana?
lyzer. The results show that the atomization cone angle is proportional to the Weber number under different oil pressure. In the same hori?
zontal section，the droplet velocity mean in the center of atomization cone is larger，and the droplet velocity mean is proportional to Weber
number. The Sauter mean diameter is inversely proportional to that of Weber. The Sauter mean diameter is the smallest at the nozzle. Ac?
cording to the criterion equation，the formula of the Sauter mean diameter of RP-3 aviation kerosene of simplex swirl atomizer is . It can be
seen from the relationship that the pressure has a great influence on the Sauter mean diameter，and the increase of pressure can rapidly re?
duce the atomization particle sizes. |
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