摘要
就杆式声雾化器的流体动力参数和几何参数对其雾化特性的影响进行了试验研究。试验在常温、常压下进行。用印痕法测量液雾尺寸分布特性,测量误差<±5%。试验结果表明,声雾化器的SMD与空气压力成反比,与液体流量成正比,共振腔尺寸Lδ对SMD的影响最大。液雾分布近似符合R-R分布,其R-R分布指数范围与大多数喷嘴相同。
The effects of the flow and geometric pa rameters of an acoustic atomizer on its spray characteristics are considered.The experiments were carried out at ambient air pressure and temperature.An impress ion method for measuring distributions o f spray droplets was used.The error of t he measurement is less than ±5%,It is sh own that the SMD of droplets is inversel y proportional to air pressure and propo rtional to liquid flow rate.The influenc e of cavity dimension L on SMD appears t o be of significance.The distribution of droplets nearly fits to Rosin Rammler e xpression,The range of exponent q is ide ntical with that of conventional atomize rs.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1995年第1期93-95,共3页
Journal of Aerospace Power
关键词
雾化器
雾化特性
共振控
航空发动机
tomizers A tomization mechanism Resonance cavities Frequency Sound pressure