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文章叙述了采用激光多谱勒速度计对压缩空气模拟气体燃料的燃烧室内冷态流场的 二维测量，获得了轴向速度Ｕ、切向速度Ｖ、轴向均方根速度ＵＲＭＳ和切向均方根速度ＶＲＭＳ，分析了 燃料喷入在燃烧室内形成的射流对旋流器产生的回旋流场的影响。
The paper describes the two-dimensional measurement of the flow field in the combustion chamber of compressed air simulating gaseous fuel by laser Doppler velocimetry and obtains the axial velocity U, tangential velocity V, axial root mean square velocity URMS and tangential direction The root mean square velocity (VRMS) is used to analyze the influence of jet injected into the combustion chamber on the swirling flow field generated by the swirler.