高负荷风扇末级静叶气动特性试验研究

发布时间：2018-06-19 20:54

本文选题：风扇 + 静叶　；参考：《热能动力工程》2016年07期

【摘要】：为了研究高负荷风扇末级静叶的气动性能,通过在静子叶栅前加装导流叶片,来模拟多级风扇中动叶出口气流参数,通过旋转导叶改变静叶进口气流角,分析不同进口气流角和进口马赫数条件下的静叶气动特性。研究表明:本研究设计的导流叶片可以为静叶提供接近动叶出口条件的来流参数,从而开展静叶试验研究。该静叶为大折转角扩压叶栅,随马赫数增加,总压恢复系数减小。随转角增大,静叶压力面流动随导叶转角增加明显改善,分离范围减小;吸力面存在较大范围的分离,转角增加对分离范围影响不大。
[Abstract]:In order to study the aerodynamic performance of the final stage static vane of a high load fan, the inlet flow angle of the stator vane is changed by changing the inlet air flow angle of the stator vane by adding the flow guide blade in front of the stator cascade to simulate the air flow parameters of the moving vane outlet in the multistage fan. The aerodynamic characteristics of the stator blades at different inlet flow angles and Mach numbers are analyzed. The results show that the guide vane designed in this paper can provide the inlet flow parameters close to the outlet condition of the moving vane, and thus carry out the static vane test. The static blade is a large angle diffuser cascade, and the total pressure recovery coefficient decreases with the increase of Mach number. With the increase of the angle of rotation, the flow of the static vane pressure surface improves obviously with the increase of the angle of the guide vane, and the separation range decreases, while the suction surface has a large range of separation, and the increase of the angle of rotation has little effect on the separation range.
【作者单位】：中国航空工业集团公司沈阳发动机设计研究所;大连海事大学轮机工程学院;
【基金】：国家自然科学基金项目(51576024);国家自然科学基金重点项目(51436002)
【分类号】：V231.3

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