燃油喷嘴气液两相流雾化特性研究

以空气，水为工质，利用马尔文粒度分析仪对气液两相流雾化器喷嘴的雾化特性进行了详细的实验研究。测量了气，液两相流不同入口压力比条件下通过喷嘴后形成的液体雾化粒子的粒径分布，详细讨论分析了气，液两相压力及进气，进液方式对喷雾效果的影响，得出了喷嘴雾化过程中气液两相流量与气液两相压力之间的规律和 化原则，并对喷嘴的雾化机理进行了探讨。

A Study of the Two phase Flow Atomizing Characteristics of Oil Spray Nozzles

With air and water serving as working media a detailed experimental study was conducted of the atomizing characteristics of a two phase flow atomizing nozzle with the help of a Malvern particle size analyzer. During the study measurements were made of the particle size distribution of atomized liquid particles formed after having passed the spray nozzles under different inlet pressure ratio conditions of the gas/liquid two phase flow. Discussed and analyzed in detail was the influence on the nozzle atomizing effectiveness of the gas/liquid two phase pressure and the gas and liquid feeding mode. As a result, determined was the variation relationship between the gas/liquid two phase flow rate and gas/liquid two phase pressure in the course of nozzle atomizing process as well as the optimum atomizing principles. In addition, the nozzle atomizing mechanism has also been discussed.