| 宋红超1，李鑫2，朴龙贤3，薛伟鹏4，季路成2.超/ 跨声涡轮尾缘掠技术数值研究[J].航空发动机,2019,45(4):1-8 |
| 超/ 跨声涡轮尾缘掠技术数值研究 |
| Numerical Research on the Tailing-edge Sweep of Super/Transonic Turbine |
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| DOI： |
| 中文关键词: 超/ 跨声涡轮 掠型 尾缘掠 展向负荷匹配 3 维激波 航空发动机 |
| 英文关键词:super/transonic turbine sweep tailing-edge sweep spanwise-loading matching 3D shock wave aeroengine |
| 基金项目:国家自然科学基金（51676015）资助 |
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| 中文摘要: |
| 为了探究局部掠结构对涡轮气动性能的影响，本文以某超/ 跨声涡轮平面叶栅为案例，对整体掠型和端区尾缘掠的效果
与机理进行数值研究。研究表明：涡轮中掠影响与风扇/ 压气机中的类似，主要通过改变展向各基元工况或负荷影响整体性能；合
适的端区尾缘掠型在保证工况或负荷基本一致的情况下能够削弱端区3 维激波强度，为超/ 跨声涡轮弱化激波带来新思路。 |
| 英文摘要: |
| In order to investigate the influence of local sweep structure on the aerodynamic performance of turbine，the effect and
mechanism of integral sweep type and end-region trailing-edge sweep were studied by taking a plane cascade of super/transonic turbine as
an example. The study shows that the influence of the sweep in the turbine is similar to that of the fan/ compressor，which mainly affects the
overall performance by changing the spanwise working condition or the load of each unit. The appropriate end-region tailing-edge sweep
can weaken the 3D shock wave strength of the end-region under the condition that the working condition or the load is basically the same，
so as to provide a new way for the super/ transonic turbine to weaken the shock wave. |
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