JIANG Zhenglong, ZHAO Chun, SUN Lipeng, et al. Study on the uniform wind field formation method in icing experiments[J]. 2016, 36(5): 1-6.DOI:
Study on the uniform wind field formation method in icing experiments
摘要
本文基于自由射流理论
介绍了在气候人工模拟室试验设备表面形成均匀风的实现方法
通过吹风、吹—吸风和吸风3种方式的仿真计算以及冰风洞缩比试验
建成了一种带低能耗冰风洞气候人工模拟室并实测了试验区风速大小及均匀性
实现了试验区风速在0
1
0 m/s可以自由调节
风速稳定
试验区各点差异小
能耗低
对气候人工模拟室内低温环境无影响
满足输变电设备表面覆冰试验对风的要求
为研究风对输变电设备表面覆冰的影响及覆冰增长规律提供了技术支持平台。
Abstract
In this paper
a uniform wind speed formation method of test equipment surface in artificial climate chamber is introduced based on free jet theory. An artificial climate chamber with low energy consumption icing wind tunnel is established by scaling test in the icing wind tunnel and wind speed simulation and calculation in three ways of blowing wind
blowingabsorbing wind and absorbing wind
an artificial climate chamber with low energy consumption icing wind tunnel is established
and then values and uniformities of wind speed in the test area are measured. The results show that the wind speed can adjust freely in 0
10 m / s
in different test points are stable and have smaller differences. Also
the icing wind tunnel has characteristics of low energy consumption and has no influence on the low-temperature environment of artificial climate chamber.In summary
the uni
form wind speed formation method satisfies the requirement for wind speed in surface icing experiments of power transmission equipment
and the icing wind tunnel provides a technical support platform for researching influences of wind speed on surface icing of power transmission equipment and ice accretion rules.