Concept and Characteristic of Integral Transonic Fan Stage

宋西镇; 李秋实; 周盛

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Concept and Characteristic of Integral Transonic Fan Stage

更新时间：2025-12-08

- Concept and Characteristic of Integral Transonic Fan Stage
- Vol. 42, Issue 7, Pages: 895-899(2008)
- 作者机构：
  
  北京航空航天大学航空发动机气动热力国家重点实验室,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： V211.6
- Online First：10 July 2008，
  
  Published：2008
- 稿件说明：
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宋西镇, 李秋实, 周盛. Concept and Characteristic of Integral Transonic Fan Stage[J]. 2008, 42(7): 895-899.
DOI：

宋西镇, 李秋实, 周盛. Concept and Characteristic of Integral Transonic Fan Stage[J]. 2008, 42(7): 895-899. DOI：

摘要

针对跨声速风扇/压气机级中静子的设计来流速度都为亚声速的现状

通过数值模拟比较了不同气动负荷的4组单级风扇

认为静子来流的跨声速现象是提高跨声速风扇/压气机级气动负荷的必然结果.模拟结果还表明

当来流马赫数不超过1.33时

不采用附面层主动控制而通过已有的设计手段可以有效地控制分离区

将跨声速来流造成的静子损失控制在适当的范围.进而对跨声速静子作出了明确定义

提出了完全跨声速风扇/压气机级的概念

认为完全跨声速风扇/压气机级的设计准则与经典设计准则至少有2点不同:静子轮毂区来流马赫数可以大于1.0; 静子轮毂区的扩散因子上限为0.53.

Abstract

The inlet flow of transonic fan/compressor stator is subsonic. Four groups of single fan stage projects with different aerodynamic load are investigated by comparative numerical analysis. It is considered that as the improvement of aerodynamic load of the transonic fan/compressor

the transonic flow in stator inlet becomes unavoidable. The results also suggest that active flow control gets unnecessary

the existing design methods are capable of diminishing the separated region

and the stator loss produced by transonic flow can be controlled on an acceptable level

unless the inlet Ma>1.33. The explicit conceptions of transonic stator and the integral transonic fan/compressor stage are defined respectively. At least two differences in fan/compressor design between the transonic and the conventional methods can be summarized: the inlet Ma of stator hub is allowed to be higher than 1.0; the diffusion factor of stator hub ought to be limited below 0.53.

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references

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