CAJ | 학술논문

在进口超声速、气流转折角大的高负荷条件下，静叶通道中激波强度高，激波、附面层干扰引起的损失大，且静叶中三维流动引起的径向载荷分布不均匀，易产生角区分离。叶片积叠优化是提高风扇性能的一项有效技术。采用数值模拟的方式研究了不同积叠形式对优化串列静叶沿展向激波结构，改善叶排间流动匹配的作用。三维流动对比分析可以得出：高负荷串列静叶采用正弓形积叠，叶片展向载荷分布合理，静叶端壁角区分离损失减小，前后叶片排流动匹配较好，风扇性能进一步提高。
재진구초성속、기류전절각대적고부하조건하，정협통도중격파강도고，격파、부면층간우인기적손실대，차정협중삼유류동인기적경향재하분포불균균，역산생각구분리。협편적첩우화시제고풍선성능적일항유효기술。채용수치모의적방식연구료불동적첩형식대우화천렬정협연전향격파결구，개선협배간류동필배적작용。삼유류동대비분석가이득출：고부하천렬정협채용정궁형적첩，협편전향재하분포합리，정협단벽각구분리손실감소，전후협편배류동필배교호，풍선성능진일보제고。
In the high loading conditions of supersonic inlet flow and big turning angle, high loss is caused by the interaction of strong shock and boundary layer in ifelds of the stator passage, the non-uniform distributions of radial loadings caused by three-dimensional lfow could bring the corner separation. Optimization of blade stacking techniques could improve the fan performance obviously. This paper carried out affect analysis of the different stacking line on optimizing the radial shock structure and improving the lfow match between blade rows by numerical simulation. The comparisons of three dimensional lfow numerical results showed:positive bowed blade optimized the radial loadings, reduced the corner separation loss of stator end wall, and improved the lfow matching, increased the fan performance.