压气机试验用典型结构探针吹风试验研究
Blowing tests on typical structures of probes used in compressor tests
刘晓晨 1高杰 1万浩涵 2赵俭 2王磊1
作者信息
- 1. 中国航发四川燃气涡轮研究院,四川 绵阳 621000
- 2. 中国航空工业集团公司北京长城计量测试技术研究所,北京 100095
- 折叠
摘要
围绕压气机气动性能试验中探针测量准确性问题,对压气机试验用典型结构的总压探针(滞止罩结构和球窝结构)、总温探针(单屏蔽结构和多屏蔽结构)开展了对比吹风试验研究.研究表明,滞止罩结构总压探针在气流不敏感角、测量精度、测量稳定性等方面均优于球窝结构总压探针,单屏蔽热电偶总温探针的总温恢复特性优于双屏蔽总温探针.当温度较低时,热辐射误差的影响较小,双屏蔽总温探针在总温测量精度方面较单屏蔽探针未体现出明显优势.
Abstract
Focusing on probe measurement accuracy in compressor performance tests,blowing tests were carried out on typical structures of the total pressure probe(stagnation cap structure and ball hole structure)and the total temperature probe(single-shielded structure and double-shielded structure)used in compressor tests.The results show that the total pressure probe with a stagnation cap structure is superior to the probe with a ball hole structure in terms of airflow sensitivity angle,measurement accuracy,and measurement stability.The recovery characteristic of a single-shielded thermocouple total temperature probe is better than that of a double-shielded probe.The influence of thermal radiation error is small at low temperatures,and the double-shielded total temperature probe does not have significant advantages over the single-shielded probe in the measurement accuracy of total temperature.
关键词
压气机/总温探针/总压探针/屏蔽结构/吹风试验Key words
compressor/total temperature probe/total pressure probe/shielded structure/blowing test引用本文复制引用
出版年
2024
NETL
NSTL
万方数据