航空学报2026，Vol.47Issue(16)：105-119,15.DOI:10.7527/S1000-6893.2025.33003
级间封严引气射流抑制压气机角区分离机理
Mechanism of interstage sealing air-entraining jet inhibiting compressor corner separation
摘要
Abstract
The influence of the interstage sealing air-entraining jet structure at different positions and geometric struc-tures on the aerodynamic performance of the compressor cascade is deeply explored.The effect and mechanism of the interstage sealing air-entraining jet on the vortex structure in the corner region of the compressor cascade under the conditions of variable incidence angle are analyzed.It is found that with the movement of the jet port to the trailing edge and the increase of the width and height of the jet port,the suppression effect of the air-entraining jet on the total pressure loss of the cascade increases first and then decreases.When the jet port is located at the starting of corner separation,the height is 20%blade height and the width is 8%chord length,the improvement effect is the best,and the total pressure loss can be reduced by 8.5%compared with the prototype.In addition,the arrangement of the air-entraining jet structure under different incidence angle conditions reduces the influence range of the passage vortex pitchwise direction,but leads to the increase of the separation vortex height in different degrees.With the increase of the incidence angle,the suppression of the separation vortex in the pitchwise direction by the air-entraining jet struc-ture increases first and then decreases,and the increase effect of the flow loss near the mid-span gradually weakens.For this reason,the improvement effect of the air-entrining jet structure on the cascade performance is first enhanced and then weakened.The best improvement effect is shown at 0°,and significantly improve the aerodynamic perfor-mance of its high-load compressor cascade.关键词
角区分离/篦齿封严/级间泄漏/涡系结构/引气射流结构Key words
corner separation/labyrinth seal/interstage leakage/vortex structure/air-entraining jet structure分类
航空航天引用本文复制引用
徐文峰,邹世龙,刘永泉,刘振侠,孙丹,任国哲,赵欢..级间封严引气射流抑制压气机角区分离机理[J].航空学报,2026,47(16):105-119,15.基金项目
辽宁省自然科学基金博士研究启动项目(2025-BS-0334) （2025-BS-0334）
辽宁省教育厅基础研究青年项目(JYTQN2023069) （JYTQN2023069）
国家自然科学基金(52375195) Doctoral Research Initiation Project of Liaoning Provincial Natural Science Foundation(2025-BS-0334) （52375195）
Liaoning Provincial Department of Education Basic Research Youth Project(JYTQN2023069) （JYTQN2023069）
National Natural Science Foundation of China(52375195) （52375195）
