中文摘要：

该文主要为研究液体性质以及喷嘴结构对气泡喷嘴雾化特性的影响。实验用浆体包括水和6种高黏度流体。采用相位多普勒粒子分析仪对多种流体进行雾化实验研究。对喷嘴几何结构和操作参数对雾化的影响进行了讨论。雾化液滴沿径向的索特平均直径（Sauter mean diameter,SMD）最大值在120μm以内。提高气液比能有效降低雾化液滴SMD。喷嘴出口直径和注气孔直径对水的雾化液滴SMD的影响显著,而改变注气角度和混合室长度对水的雾化液滴SMD影响不大。混合室长度增加后,非牛顿流体的雾化质量有一定下降。黄原胶添加量的提高对雾化液滴SMD有很大影响。在雾化介质为水的情况下,液滴SMD变化范围为60～95μm;雾化高黏度流体时SMD范围为60～120μm。

英文摘要：

The purpose of this research was to investigate the dependence of effervescent spray performace on fluid properties and atomizer internal design.The spray liquid included water and six kinds of high viscosity fluids.With the phase doppler particle analyzer（PDPA）,spray characteristics of various fluids were investigated.The influence of atomizer geometries and operating parameters were discussed.Increasing air-to-liquid ratio（ALR） will reduce droplets Sauter mean diameter（SMD） effectively.The largest SMD along radial is less than 120？？m.The exit orifice diameter and air injection diameter affects droplets SMD significantly,while the change of air injection angle and mixing chamber length has less effects on droplets SMD.The atomization quality of non-Newtonian fluid drops when the mixing chamber length increases.With the addition of xanthan gum the droplets SMD increase dramatically.The SMD of water is 60~95？？m,and the SMD of viscous fluids is 60-120？？m.