固着液滴蒸发研究进展及展望

Research progress and prospects of sessile droplets evaporation

中文关键词: 固着液滴  蒸发  热质传递  气液固三相耦合

英文关键词: sessile droplets  evaporation  heat and mass transfer  gas-liquid-solid three-phase coupling

中文摘要:

      固着液滴是指附着于壁面上的液滴，其蒸发行为及传热传质特性是喷雾冷却、喷墨打印等相变传热传质领域的基础问题之一。文中重点针对固着液滴蒸发过程所涉及的自身形态演变规律、气液固三相耦合传热/传质/流动特性进行了综述。结合毫微尺度固着液滴基本蒸发模式、热质传递形式、气液两相流动特征和界面输运行为，分析了液滴性质、壁面条件、气相环境条件等关键因素对固着液滴蒸发过程的内在作用机制和影响规律，提出了微纳尺度固着液滴（群）热质传递过程与机理的相关研究展望。

英文摘要:

      The sessile droplet is a droplet that adheres to the wall. The evaporation behavior and heat & mass transfer characteristics of sessile droplets are one of the basic problems in the field of phase change heat and mass transfer, such as spray cooling and inkjet printing. This paper focuses on the evolution of its own shape involved in the evaporation process of sessile droplets, and the characteristics of gas-liquid-solid three-phase coupling heat & mass transfer and flow. Combined with the basic evaporation mode, heat & mass transfer form, gas-liquid two-phase flow characteristics and interfacial transport behavior of millimeter and micrometer scales sessile droplets, the mechanism and effect of key factors such as droplet properties, wall conditions and gas phase environment on the droplets evaporation process are analyzed in detail. Based on the current research status, prospects for related research on the process and mechanism of heat & mass transfer in micro- and nano-scale sessile droplets (swarms) are presented.