航空发动机

王晨璐1 ，邢菲1 ，吴松霖 1 ，李星璐 1 ，周伟2 ，张帅2.航空发动机露天台吞砂试验装置数值仿真[J].航空发动机,2025,51(6):161-168

航空发动机露天台吞砂试验装置数值仿真

Numerical Simulation Study on Sand Ingestion Test Device for Aeroengine Outdoor Test Stand

DOI：

英文关键词:outdoor test stand sand ingestion test sand spray device numerical simulation aeroengine

基金项目:国家级研究项目资助

作者	单位
王晨璐1 ，邢菲1 ，吴松霖 1 ，李星璐 1 ，周伟2 ，张帅2	1.厦门大学航空航天学院，福建厦门 361005； 2.中国航发沈阳发动机研究所，沈阳 110015

摘要点击次数: 1905

全文下载次数: 440

中文摘要:

为推进吞砂试验标准本土化，促进完善适用于中国航空发动机需求的试验方法和试验装置，基于航空发动机露天台吞砂试验装置开展了气固两相数值仿真。结合中国典型地区砂粒粒径和美军标规定的沙粒粒径，计算得到粒径在63~1000 μm范围内砂粒不同的质量加权平均粒径分布，并分析了吞砂试验中不同砂粒种类在喷砂设备和发动机进气流场中的扩散特性和分布规律，研究了不同喷砂设备结构参数对发动机进气道入口截面砂粒分布特性的影响规律。结果表明：砂粒的种类对发动机进气流场中砂粒的分布会产生影响，发动机吸入美军标规定砂粒的均匀度最高，面均匀度达到0.293；整流筒直径和相对发动机进口距离过大，将会导致发动机吸入砂粒不足，无法满足吞砂试验中对发动机入口截面处砂粒密度的要求。

英文摘要:

To localize sand ingestion test standards and optimize test methods for Chinese aeroengine, a gas/solid two-phase numeri? cal simulation was carried out using an outdoor test rig. Mass-weighted average particle sizes were calculated for sands ranging from 63 to 1000 μm, based on typical Chinese regional sands and the American military standard. The diffusion and distribution characteristics of dif? ferent sand types within the injection device and engine inlet flow fileld were analyzed. The influences of structural parameters of the injec? tion device on sand distribution at the engine inlet section were also investigated. Results show that sand type significantly affects the distribution uniformity. The standard sand specified in the American military achieved the highest uniformity, with an areal uniformity index of 0.293. An excessively large fairing tube diameter or an excessive large distance between the fairing tube and engine inlet causes insufficient sand ingestion, failing to meet the required sand concentration at the inlet section of the engine.

查看全文 HTML 查看/发表评论下载PDF阅读器