苗木精确对靶自走式喷雾机风送系统流场模拟研究
摘 要
本综述主要分析了苗木精确对靶自走式喷雾机风送系统流场模拟研究课题的研究目的和现实意义，同时对国内外关于喷雾机风送系统流场模拟的相关研究和研究方法进行了简要介绍，并对课题研究的内容加以总结概括，即完成喷雾机风送系统内部流场模拟，进行不同种出风口的流场模拟，对模拟结果进行分析并提出改进措施，最后对该课题的研究提出了几点研究创新与特色。
关键词：自走式喷雾机；风送系统；出口装置；流场模拟
ABSTRACT
This paper mainly analyzes the research purpose and practical significance of the simulation study on the flow field of the self-propelled sprayer of precisely targeting at seedling, and introduces some relevant research and research methods of the flow field simulation of the sprayer system at home and abroad. This paper summarizes the contents of the research, that is, to carry out the simulation experiments of the internal flow field of the sprayer system based on different kinds of outlet. The experiment results will be analyzed and the improvement measures will be put forward in the following work. In the last part, some innovations and features of this research are presented.
Key words: Self-propelled sprayer；Air delivery system；Export device；Flow field simulation
1 课题研究目的和意义
长期以来林业苗木和经济林果病虫害严重威胁着树木的生长和林果的质量与产量，对国民经济的发展也产生了不可忽略的影响。常规的农药喷雾技术喷洒出去的农药只有不到30%能够沉积在树冠上，大量的药液流失到地面或飘移到空中造成严重的污染与浪费。因此，采用常规的农药喷雾技术进行林业植保作业存在药液利用率低、无效喷洒多、农药浪费严重、环境有污染等突出问题。
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