大气与环境光学学报, 2013, 8 (5): 321, 网络出版: 2013-09-30  

标准型风刀的风速标定及其流场特性研究

Velocity Calibration and Investigation of Flow Field at Air Knife Exit
作者单位
1 中国科学院安徽光学精密机械研究所 中国科学院大气成分与光学重点实验室, 安徽 合肥 230031
2 中国科学院大学, 北京 100039
摘要
采用IFA-300热线风速仪对由成都光电研究所研制的压缩气体驱动的标准型风刀在不同压强下刀口处的风速进行了 标定,并对风刀刀口处的流场特性进行了研究,实验结果表明,风刀刀口处的风速与压缩气体的压强成线性关系,压强 越大,刀口处的风速也越大;风刀刀口处流场的稳定性和均匀性与流场的具体位置有关,风刀风道中心位置的流 场流速最大,不稳定度最低,大约为2%;在风刀风道的边缘位置,流场流速最小,不稳定度最高,不稳定度接近28%左右。
Abstract
Wind velocity in different barometric pressure and characteristics of the flow field at the vent port of air knife, designed by Institute of Optics and Electronics, Chinese Academy of Sciences, driven by compressed gas were calibrated and analyzed by using a IFA-300 hot-wire anemometer. The results show that wind velocity has a good liner relation with barometric pressure; the larger the pressure is, the greater the velocity is; and the uniformity and stability of flow field at the vent port are related to the location of flow field. In the centre of the flow field, the velocity of flow field was the largest, and the instability was the lowest, its value was close to 2%. On the edge of the flow field, the velocity of flow field was the lowest, and the instability was the largest, its value approximately equaled 28%.

向文杰, 吴晓庆, 侯再红. 标准型风刀的风速标定及其流场特性研究[J]. 大气与环境光学学报, 2013, 8(5): 321. XIANG Wen-jie, WU Xiao-qing, HOU Zai-hong. Velocity Calibration and Investigation of Flow Field at Air Knife Exit[J]. Journal of Atmospheric and Environmental Optics, 2013, 8(5): 321.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!