包含多孔材料的SPS机匣处理理论及实验研究  

Theoretical and Experimental Study on SPS Casing Treatment With Porous Material

作　　者：张晋铭 孙大坤[1] 李佳[1] 王宇晴 董旭[2] 孙晓峰[1] ZHANG Jinming;SUN Dakun;LI Jia;WANG;Yuqing;DONG Xu;SUN Xiaofeng(School of Energy and Power Engineering,Beihang University,Beijing 100191,China;Research Institute of Aero-Engine,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191 [2]北京航空航天大学航空发动机研究院,北京100191

出　　处：《工程热物理学报》2023年第1期63-70,共8页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.51906004,No.51790514);国家科技重大专项(No.2017-II-003-0015)。

摘　　要：本文基于风扇/压气机三维稳定性解析模型,利用等价分布源方法计算机匣处理对压力扰动波的响应,得到包含机匣处理的压气机稳定性模型。通过改变背腔中介质的物性参数,预测压气机失稳点,能够定性分析在原本SPS机匣处理的基础上,背腔中填充多孔材料对稳定性的影响。针对低速单级轴流风扇TA36进行了加入多孔材料后的稳定性理论分析,并且进行相关实验验证理论模型的结果。此外,本文还对加入机匣处理后的前传噪声进行了测量和分析,从扩稳和降噪的角度综合考虑SPS机匣处理背腔填充多孔材料的影响。In this paper,based on the three-dimensional stability analytical model of fan/compressor,the equivalent distributed source method is used to calculate the response of the casing treatment section to the pressure disturbance wave,and the stability model including the casing treatment is obtained.By changing the physical parameters of the medium in the back cavity and predicting the instability point of the compressor,the influence of filling porous material in the back cavity on the stability can be qualitatively analyzed on the basis of the original SPS casing treatment.The stability of low-speed single-stage axial fan TA36 with porous material was analyzed theoretically,and the results of the theoretical model were verified by relevant experiments.In addition,this paper also measured and analyzed the forward noise after adding the casing treatment,and comprehensively considered the influence of filling porous material in the back cavity of SPS casing treatment from the perspective of stability expansion and noise reduction.

关 键 词：压气机 流动稳定性 机匣处理 多孔材料 降噪 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]