叶栅式预旋喷嘴气动设计与试验研究  

Aerodynamic design and experimental investigations on the vane shaped pre-swirl nozzle

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作  者:张华军 印灿 陈丹青 岳治衡 ZHANG Huajun;YIN Can;CHEN Danqing;YUE Zhiheng(Chengdu Military Representative Bureau of Air Force,Chengdu 610500,China;AECC Sichuan Gas Turbine Establishment,Chengdu 610500,China)

机构地区:[1]空军成都局某军事代表室,成都610500 [2]中国航发四川燃气涡轮研究院,成都610500

出  处:《燃气涡轮试验与研究》2024年第1期43-48,共6页Gas Turbine Experiment and Research

摘  要:合理的预旋喷嘴设计及分析在减小预旋系统的流动损失,改善叶片换热效果扮演着重要角色。基于自研软件首先对典型结构的预旋喷嘴翼型进行气动设计,然后根据设计结果进行三维仿真分析,并开展试验研究。考虑到预旋喷嘴叶片小、高度较低,在实际加工制造时容易超差,采用仿真方法研究了预旋喷嘴叶片高度与安装角的变化对流动特性的影响。试验结果显示,仿真结果与试验结果符合性较好,证实了预旋喷嘴设计结果满足设计要求。In order to reduce the flow loss of the pre-swirl air supply system and improve the heat transfer effect of the blades,reasonable pre-swirl nozzle structure design and simulation analysis methods are very important.Based on self-developed software,the pre-swirl nozzle was designed and three-dimensional simulation analysis and experimental research was conducted according to the design results.Due to the small size and low height of the pre-swirl nozzle,it is easy to exceed the tolerance during actual processing.Simulation methods were used to study the influence of changes in the height and stagger angle of blades on the flow characteristics.The experimental results show that the simulation results are in good agreement with the experimental results,confirming that the design of the pre-swirl nozzle meets the design requirements.

关 键 词:航空发动机 预旋喷嘴 翼型设计 叶片高度 安装角 

分 类 号:V231.1[航空宇航科学与技术—航空宇航推进理论与工程]

 

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