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低雷诺数下高负荷轴流压气机表面粗糙度流动调控机制

程泓智 王名扬 周创鑫 赵胜丰 卢新根 朱俊强

程泓智, 王名扬, 周创鑫, 赵胜丰, 卢新根, 朱俊强. 低雷诺数下高负荷轴流压气机表面粗糙度流动调控机制[J]. 航空动力学报, 2022, 37(2): 283-295. doi: 10.13224/j.cnki.jasp.20210134
引用本文: 程泓智, 王名扬, 周创鑫, 赵胜丰, 卢新根, 朱俊强. 低雷诺数下高负荷轴流压气机表面粗糙度流动调控机制[J]. 航空动力学报, 2022, 37(2): 283-295. doi: 10.13224/j.cnki.jasp.20210134
CHENG Hongzhi, WANG Mingyang, ZHOU Chuangxin, ZHAO Shengfeng, LU Xingen, ZHU Junqiang. Surface roughness flow control mechanism of highly-loaded axial compressor under low Reynolds number conditions[J]. Journal of Aerospace Power, 2022, 37(2): 283-295. doi: 10.13224/j.cnki.jasp.20210134
Citation: CHENG Hongzhi, WANG Mingyang, ZHOU Chuangxin, ZHAO Shengfeng, LU Xingen, ZHU Junqiang. Surface roughness flow control mechanism of highly-loaded axial compressor under low Reynolds number conditions[J]. Journal of Aerospace Power, 2022, 37(2): 283-295. doi: 10.13224/j.cnki.jasp.20210134

低雷诺数下高负荷轴流压气机表面粗糙度流动调控机制

doi: 10.13224/j.cnki.jasp.20210134
基金项目: 国家自然科学基金 (51836008); 航空发动机及燃气轮机重大专项基础研究(2017-Ⅱ-0010-0024)
详细信息
    作者简介:

    程泓智(1996-),男,硕士生,主要研究领域为叶轮机械气动热力学。

  • 中图分类号: V231.1

Surface roughness flow control mechanism of highly-loaded axial compressor under low Reynolds number conditions

  • 摘要: 以某1.5级高负荷轴流压气机为研究对象,采用经过校核的数值模拟手段详细探究了低雷诺数下表面粗糙度对其气动性能及内部流场的影响。结果表明:相比于光滑叶片,表面粗糙度为137.8时压气机性能提升最为明显,总压比、堵塞流量以及峰值效率分别提升4.01%、2.24%、5.34%。在整个表面粗糙度大小范围内,表面粗糙度布置在吸力面前缘至50%轴向位置时对分离、转捩的调控效果较好,能够较大限度地提升低雷诺数下压气机的气动性能。表面粗糙度通过促进转捩、抑制层流分离以及改变速度和静压分布来改善压气机流场和气动特性,同时一定程度上恶化了后面级的级间匹配关系,造成静子叶根处分离提前,角区分离加剧,限制了压气机整体气动性能的进一步提高。

     

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出版历程
  • 收稿日期:  2021-04-02
  • 刊出日期:  2022-02-28

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