摘要
为了从机理上探究站台活塞风分布规律,通过理论建模、现场实测和液体缩尺模型实验相结合的方法,提出并验证了站台活塞风起始段符合附壁射流理论模型。其中,对上海某地铁站台层的现场实测较好验证了站台活塞风起始段自由剪切区的理论模型,理论与实测数据的标准差在0.326和0.542之间;液体缩尺模型实验对站台活塞风起始段边界层区、势流核心区和自由剪切区理论模型进行了验证,三区吻合较好,标准差在0.071和0.746之间。上述研究证明了站台活塞风附壁射流理论起始段的正确性。
To study the platform piston wind distribution characteristics, the theory modeling, field measurement and liquid scale model test are combined. Based on the field measurement in a subway station in Shanghai, the field test data fit well with the theory calculation results in the initial segment of platform piston wind. The standard deviation between theory calculation and field measurement is between 0. 326 and 0. 542. The liquid scale model test is set up to verify the related mathematical model during the boundary layer district, poten- tial flow core area and free shear zone in the initial segment. The model test results have good agreement with theory calculation with the standard deviation between 0. 071 and 0. 746. It is proved by above research works that the platform piston wind could be taken as the ini- tial segment of attached jet.
出处
《制冷学报》
CAS
CSCD
北大核心
2014年第3期65-70,共6页
Journal of Refrigeration
基金
国家自然科学基金(50908147
51208298)资助项目
上海市教委重点学科建设项目(J50502)
上海市大学生创新实验项目(SH1110252104)资助~~
关键词
站台活塞风
附壁射流起始段
现场实测
液体缩尺模型实验
the platform piston wind
initial segment of the attached jet
field measurement
liquid scale model test
