First the standardization of the Five-Hole probe was introduced ,then the variation of the exit velocity was studied when changing the angle of the swirling blades.

• 本文介绍了五孔探针的标定,研究了不同旋流叶片角度对燃烧器出口速度场的影响。分析了各个工况的轴向,切向,径向速度的变化状况及其扩展角。