摘要
针对单烧嘴湍流平焰燃烧冷态实验模型,采用粒子激光测速(PIV)技术对烧嘴下方的主要燃烧区速度场(350 mm×250 mm)进行了测量,得出在旋流强度为1.76,空气量/煤气量为19.39下的径向速度和轴向速度分布.实验研究发现,平展流由回流区、附壁射流区和过渡区组成,同时分析了3个区域内径向速度和轴向速度的变化规律,得到了二维速度场分布的特点.
Based on the single burner turbulent flat-flame cold model, the central combustion speed field under bumer was measured by using Particle Linage velocimetry （PIV） technique. The speed field was found to consist of back flow region and joint jetting region and transitional region under the chamber condition that the whirl strength is 1.76 and the ratio of air to coal gas is 19.39. The distributing characteristic of radial velocity and axial velocity in the three regions was discussed, with the distributing rule of two dimension velocity field obtained.
出处
《包头钢铁学院学报》
2006年第4期331-334,共4页
Journal of Baotou University of Iron and Steel Technology
基金
国家自然科学基金资助项目(00250117)
内蒙古自然科学基金资助项目(200508010701)
关键词
PIV
平展流
湍流流动
冷态实验
速度场
PIV
open and fiat flow
turbulence flow
the cold model test
speed field
