Influence of wet compression on performance of compressor rotor working at its stall boundary

杨国伟; 吴艳辉; 安光耀; 陈智洋

doi:10.13224/j.cnki.jasp.2018.04.006

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Influence of wet compression on performance of compressor rotor working at its stall boundary

更新时间：2026-07-07

- Influence of wet compression on performance of compressor rotor working at its stall boundary
- Vol. 33, Issue 4, Pages: 812-822(2018)
- 作者机构：
  
  1. 西北工业大学动力与能源学院,西安,710072
  2. 先进航空发动机协同创新中心,北京,100191
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2018.04.006
  CLC：
- Published：2018
- 稿件说明：
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杨国伟, 吴艳辉, 安光耀, 陈智洋. 湿压缩对压气机转子失稳边界工况性能的影响[J]. 航空动力学报, 2018, 33(4): 812-822.

doi: 10.13224/j.cnki.jasp.2018.04.006
杨国伟, 吴艳辉, 安光耀, 陈智洋. 湿压缩对压气机转子失稳边界工况性能的影响[J]. 航空动力学报, 2018, 33(4): 812-822. DOI： 10.13224/j.cnki.jasp.2018.04.006.

doi: 10.13224/j.cnki.jasp.2018.04.006 DOI：

摘要

针对某型跨声速压气机转子的失速边界工况，采用数值模拟方法系统研究了不同加湿条件对其性能的影响。获得了水滴粒径、速度、温度和喷水量与转子进气流量、压比、效率、比压缩功等性能参数之间的关系曲线。结果表明：在失速边界上对跨声速压气机进气加湿，可以增加空气流量，提高总压比和效率，降低比压缩功。通过对流场的分析，发现进气加湿后，向低能区注入了高动量的水滴颗粒，削弱叶顶阻塞团，将主流与泄漏流交界面和激波位置向下游推进，减小激波强度，降低叶顶载荷，增大主流区载荷，改善了叶顶流场。提出了以水滴的面积流量定量评价不同进气加湿条件对叶顶流场的作用效果。

Abstract

At the stall boundary condition of a transonic compressor rotor

numerical simulation method was used to study the effects on operation performance with different inlet fogging conditions. Correlation curves between performance parameters

including air flow

total pressure ratio

isentropic efficiency and specific work

and inlet fogging parameters

including water droplet diameter

velocity

temperature and water spray rate

were obtained. Results showed that inlet fogging can increase air flow

heighten total pressure ratio

enhance isentropic efficiency and reduce specific work. Through analyzing the flow field in detail

it was found that inlet fogging can inject high momentum water droplet to tip stagnation zone

decrease blockage region

move down the interface between main flow and leakage flow

weaken the strength of shock

reduce tip load and increase load at mainstream region. A parameter named water droplet area flow was taken to evaluate the effect on flow field with different fogging conditions quantitatively.

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