轻工机械2025，Vol.43Issue(3)：82-90,9.DOI:10.3969/j.issn.1005-2895.2025.03.012
空气雾化喷嘴雾化特性的数值模拟研究
Numerical Simulation on Atomization Characteristics of Air Atomization Nozzles
摘要
Abstract
In order to explore the influence of the outlet flow rate of the auxiliary atomization hole and the main atomization hole on the atomization characteristics,the research group used the numerical simulation method to study the atomization characteristics of the external mixing atomization nozzle.Based on FLUENT software,the Realizable k-ε turbulence model was used to simulate the atomization process,while the Discrete Phase Model(DPM)was used to inject the atomized working liquid droplets.The numerical simulation of the nozzle formation process was conducted.The results show that the outlet flow velocity of the auxiliary atomization hole significantly affect atomization cone angle.The increase of the outlet flow velocity would lead to increase of the atomization cone angle,the decrease in the Sauter Mean Diameter(SMD)and the decrease in spraying pressure.As the outlet flow rate of the main atomization hole increases,the spray pressure continues to rise,leading to a more concentrated high-pressure zone and a more rapid pressure drop.When the outlet flow rate of the auxiliary atomization hole is lower than the main atomization hole,the lateral atomizing medium is too weak to fully open the spray fan.关键词
空气雾化喷嘴/雾化特性/雾化锥角/索特平均直径/Realizable k-ε湍流模型/离散相模型Key words
air atomization nozzle/atomization characteristic/atomization cone angle/SMD(Sauter Mean Diameter)/Realizable k-ε turbulence model/DPM(Discrete Phase Model)分类
机械工程引用本文复制引用
胡建林,黄庆,汪军印,柴敏,郑水华..空气雾化喷嘴雾化特性的数值模拟研究[J].轻工机械,2025,43(3):82-90,9.基金项目
国家自然科学基金资助项目(51976193). （51976193）
