对远射程风送式喷雾机的研究集中在喷雾机结构的优化、雾滴沉积、雾滴飘移及回收方面，但雾滴在空间风场中的传输机理尚未明确；申请者在试验中发现，药液中加入药液添加剂会影响风送式喷雾机的喷程，然而，这种减阻增效的机制有待深入探究。本项目旨在通过对风场中雾滴流的运动机理研究，探索远射程风送式喷雾机降低能耗的途径；拟采用空气动力学、流体力学及有限元分析方法，研究风场中雾滴的受力，建立风场中雾滴的空间运动模型；研究风场中雾滴特性参数的变化规律，揭示雾滴在空间传输过程中的破裂与聚合的规律，阐明风送式喷雾中减小雾滴破裂与传输阻力的动力学原理；研究添加剂、农药剂型及风速对减小雾滴传输阻力的协同增效机制，提供风送式喷雾技术雾滴空间传输中的增效方法；为远射程风送式喷雾机的节能增效工程研究奠定理论基础，为其高效低耗应用提供理论依据。研究成果对风送式喷雾雾滴传输节能增效的技术应用具有重要的科学意义。

Research in the long-range air-blast spraying field was focused on optimization of structure, droplet deposition, droplet drift and recovery. But the mechanism of droplet transfer in space wind is not yet clear. It was found in experiment that the spraying range of air-blast sprayer was affect by mixing some additive to the spraying solution. However, it still needed to be further and depth studied that the increasing efficiency mechanism of air-blast spraying by using some additives. The ultimate goal of this study is to solve the existing problems such as high energy consumption in long-range air-blast sprayer. In this study, air-blast spraying droplet will be used as research objects while methods of aerodynamics, fluid dynamics and finite element analysis will be utilized to carry out the analysis of air-blast sprayed droplets’ in-the-space movement, thus to construct the in-the-space motion models for air-blast sprayed droplets. Changes of the droplet load and its characteristics within the wind field will be studied to reveal the breaking down and aggregating laws during a droplet’s transmission in the space. The mechanism of droplet movement in the air-blast status will be studied to clarify the dynamics principle for reducing droplet rupture and its transmission resistance. Better pesticide solution additive formulations will be filtered out by studying the mechanism of using pesticide solution additives to reduce transmission resistance. Furthermore, it can provide methods for improving the efficiency for air-blast sprayed droplets during their transmission in the space. Theoretical basis of the engineering research as to improve efficiency for air-blast spraying will be established along with the studies, and hereby to provide the basis for air-blast sprayers’ high efficiency and low energy consumption applications. The research will be important implications to the air-blast spraying technology application.