摘要
提出将射流冲击技术应用于路面积冰去除,将具有一定温度、压力、流量等射流参数的蒸汽流体,经过射流管上的细孔喷出,冲击冰路结合处,使该区域温度迅速升高至融化,实现积冰与路面的快速分离,结合铲斗,将冰层推走.利用Gambit和Fluent流体仿真软件建立射流除冰的数值模型,研究不同孔径大小和分布规律对除冰效率的影响规律.仿真研究结果表明:随着区域内射流孔分布密度的增加,除冰效率也相应增大,其中8孔射流嘴除冰效率达到了24km/h,但随着孔数的增加,除冰效率并不成单调性增长,需要选择合适的最优值.
Jet impinging technology is put forward to remove the ice on the road. The vapor jet with certain temper- ature, pressure, and flow is injected through several small nozzles to icy road. The ice is warmed or even melted, thus separated from the road and then are pushed away by a forklift truck. The softwares named Gambit and Fluent are used to establish numerical model and study the de-icing efficiency with different nozzle distribution patterns in same area. Results show that the de-icing efficiency is improved with the increase of jet nozzle number, which can reach 24 km/h with 8 nozzle pattern. Yet the increase of de-icing efficiency is not in linear relationship with in- crease of the nozzle number, thus an optimal value of nozzle number is needed to choose.
出处
《南京信息工程大学学报（自然科学版）》
CAS
2013年第3期251-256,共6页
Journal of Nanjing University of Information Science & Technology（Natural Science Edition）
关键词
蒸汽射流
除冰效率
数值模拟
孔径
vapor jet
efficiency of de-icing
numerical simulation
aperture
