Y型喷嘴液膜随机破碎模型研究  

Mathematical Modeling on Random Breakup Characteristics of Liquid Sheet Shed from Y-Jet Nozzle

作　　者：宋玉宝[1] 章明川[1] 尹斌[1] 吴江[1] 周月桂[1] 范卫东[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《燃烧科学与技术》2003年第2期153-156,共4页Journal of Combustion Science and Technology

基　　金：国家重点基础研究规划资助项目(G1999022209);上海电力局科技规划资助项目.

摘　　要：采用Monte Carlo法,综合考虑Y型喷嘴液膜破碎过程中表面扰动波长、液膜厚度及初始雾化液滴速度等分布的随机性,结合混合孔内气、液两相流动及二阶段雾化模型,建立Y型喷嘴雾化液滴粒度分布模型.利用FAM型激光粒度仪对实验喷嘴的雾化特性进行测试,测量结果与模型预测结果吻合较好.Based on the previous work in the literature,the random distribution characteristics of the wavelength of surfacedisturbance,the liquid sheet thickness,and the initial droplets velocity were modeled by using the MonteCarlo method.An improved mathematical modeling system with size distribution of droplets for Yjet nozzle was established.To verify the correctness of the model system,a laser diffraction sizedistribution analyzer was applied and several different Yjet nozzles were tested.Fairly good agreement between the experimental results and the model predictions was obtained.

关 键 词：液膜破碎 随机分布 MONTE-CARLO法 液滴粒度分布 雾化模型 Y型喷嘴 蒙特卡罗法 

分 类 号：O484[理学—固体物理]