测控技术2012，Vol.31Issue(6)：38-41,4.
某型涡扇发动机进口空气流量及附面层的测量与计算
Engine Airflow Measurement and Calculation Based on Rake Parameters
史建邦 1申世才 1马燕荣 1赵海刚1
作者信息
- 1. 中国飞行试验研究院发动机所,陕西西安710089
- 折叠
摘要
Abstract
Airflow rate is an important performance parameter of engine, and measurement accuracy of engine airflow rates with great significance for aero-engine design. The engine inlet measurement rake system was analyzed, as well as the engine airflow rate and boundary layer displacement thickness, and error determination math model was established, area partition technique and boundary layer corrections method were used to gaining the engine airflow rate. Test results show that intermediate state engine air flow measurement value is consistent with the design value, boundary layer affects air flow by approximately 2% to 3%, the new combination pressure boundary layer rake can gain the engine inlet flow field and its subsidiary surface layer information accurately.关键词
发动机/空气流量/测量耙/附面层Key words
engine/ airflow rate/ measurement rake/ boundary layer分类
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史建邦,申世才,马燕荣,赵海刚..某型涡扇发动机进口空气流量及附面层的测量与计算[J].测控技术,2012,31(6):38-41,4.
