自然环境条件下人工成雪粒径大小的影响因素研究
Influencing Factors of Artificial Snow Particle Size under Natural Environmental Conditions
杨西茹 1吴海峰 1郝亚辉 1王瑞祥 1徐荣吉1
作者信息
- 1. 北京建筑大学 北京市建筑能源高效综合利用工程技术研究中心 北京 100044
- 折叠
摘要
利用造雪机在自然环境条件下对人工造雪的成雪过程进行实际测试,获得了雪晶的微观形貌,同时分析了不同工况下成雪粒径的大小及其影响因素并推论了人工造雪的成雪过程.结果表明:雪晶降落位置、环境温湿度、喷嘴雾化粒径均是影响雪晶粒径的重要因素.较低的环境温湿度以及较小喷嘴口径产生的雾化液滴更容易促使形成较大粒径的雪晶;当造雪机稳定产雪时,远处的雪晶粒径分布比边缘和中间区域的更不均匀,且雪场实测的成雪粒径约为 0.3 mm,远大于喷嘴的雾化粒径(0.12 mm),由此推论雪晶在飞行过程中会发生碰撞行为.这对于成雪机理及成雪雪质的调控具有重要意义.
Abstract
In this study,artificial snow is produced under natural conditions using a snowmaking machine,and the microscopic morphology of the snow crystals is obtained.The sizes of snow particles and the factors that influence them under various working conditions are subsequently analyzed,and the formation of artificial snow is deduced.The results show that the falling position,environmental temperature and humidity,and nozzle atomization particle size are important factors affecting snow particle diameter.Lower environmental temperature and humidity,as well as a smaller nozzle diameter,facilitate the formation of larger snow particles.When the snowmaker operates stably,the distribution of snow particle diameter is more non-uniform in distant areas than at the edges and middle regions.The measured snow particle size is approximately 0.3 mm,which is significantly larger than the atomization particle size of the nozzle(0.12 mm).This result indicates that snow particles collide during flight.Overall,this study is important for understanding the mechanisms of snow formation and the regulation of snow quality.
关键词
雪晶粒径/造雪机/人工造雪/雪质Key words
snow particle size/snowmaker/artificial snowmaking/snow quality引用本文复制引用
基金项目
国家重点研发计划(2020YFF0303904)
出版年
2024
国家科技期刊平台
NSTL
万方数据