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介绍一种用于森林保护科研试验的低速风洞的构造、性能和设计原理。风洞实验段尺寸１ ．２ ｍ ×１ ．２ ｍ ×１ ．８ ｍ ，可在０ ～６ ｍ／ｓ 范围连续平稳地调节气流速度。试验表明，风洞实验段的气流场均匀稳定，适合研究飞行昆虫携带电荷的规律，还可用于雾滴的传输和沉降机理及林火行为的研究。
This paper introduces the structure, performance and design principle of a low-speed wind tunnel for scientific research of forest protection. Wind tunnel experimental section size 1. 2 m × 1. 2 m × 1. 8 m, it can continuously and smoothly adjust the air velocity in the range of 0 ~ 6 m / s. The experimental results show that the airflow field in the experimental section of the wind tunnel is uniform and stable, which is suitable for studying the law of charge carried by flying insects. It can also be used to study the mechanism of transmission and settlement of droplets and the behavior of forest fire.