航空发动机地面试车台缩比相似判据及其仿真验证  

Scaling similarity criterion for aero-engine ground test cell and its simulation verification

作　　者：王衡 陈鹏飞 苑微 王皓 WANG Heng;CHEN Pengfei;YUAN Wei;WANG Hao(AECC Sichuan Gas Turbine Establishment,Mianyang 621000,China;School of Power and Energy Northwestern Polytechnical University,Xi’an 71002,China)

机构地区：[1]中国航发四川燃气涡轮研究院,四川绵阳621000 [2]西北工业大学动力与能源学院,西安710129

出　　处：《燃气涡轮试验与研究》2023年第5期30-37,共8页Gas Turbine Experiment and Research

基　　金：国家财政稳定支持项目(GJCZ-0030-19)。

摘　　要：基于相似理论设计构建模型地面试车台具有重要的理论意义与工程应用价值。为使模型地面试车台能够有效复现原型地面试车台的流场气动特性,保证两者流场测试数据一致或近似,模型地面试车台的设计构建需要遵循一定的缩比相似判据。采用量纲分析法,推导、提出了地面试车台缩比相似判据。在满足相似判据条件下,进一步利用数值仿真,验证了该地面试车台缩比相似判据的合理性与有效性。研究对模型地面试车台的研制具有较大的指导意义。It has important theoretical significance and engineering application value to design and construct scale model of ground test cell based on the similarity theory.In order to enable the subscale ground test cell to reflect the flow characteristics of full-scale engine test cell,and ensure that the flow field test data of them are consistent or approximate,the design of subscale model needs to follow certain scaling similarity criteria.The scaling similarity criterion of ground test cell was deduced by dimensional analysis method.Furthermore,on the premise of meeting the scaling similarity criterion,the rationality and validity of the scaling similarity criterion derivation of the ground test cell were verified by numerical simulation method,which has important significance for the development of the scale model ground test cell.

关 键 词：航空发动机 地面试车台 缩比模型 相似判据 量纲分析法 数值仿真 

分 类 号：V263.3[航空宇航科学与技术—航空宇航制造工程]