Analysis for influence of different tip clearance on transonic fan rotor

LIU Jian-yong; YUAN Wei; ZHOU Sheng; LU Ya-jun

Chinese

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Analysis for influence of different tip clearance on transonic fan rotor

更新时间：2026-07-07

- Analysis for influence of different tip clearance on transonic fan rotor
- Vol. 22, Issue 11, (2007)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院航空发动机气动热力重点实验室,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
移动端阅览
LIU Jian-yong, YUAN Wei, ZHOU Sheng, et al. Analysis for influence of different tip clearance on transonic fan rotor[J]. 2007, 22(11).
DOI：

LIU Jian-yong, YUAN Wei, ZHOU Sheng, et al. Analysis for influence of different tip clearance on transonic fan rotor[J]. 2007, 22(11). DOI：

摘要

为研究跨声压气机叶尖间隙流动对性能影响的特征

数值计算了某高负荷跨声风扇转子在种等高间隙和两种阶梯间隙结构下的性能.通过对总体性能参数和叶尖区静压、周向速度、熵等细节参数的分析

认为叶尖前段间隙流比后段间隙流对压气机性能的影响更大.其中

涡波干涉对于前段间隙流带来的危害尤为重要.比较阶梯间隙的计算结果

验证了这一推断.

Abstract

In order to study the influence of tip clearance flow on the performance of a transonic compressor

a high-load transonic fan's rotor with five constant width clearances and two step-clearances were numerically simulated.After analysis of the overall performance parameters and the detailed flow parameters including the static pressure

circumferential velocity and entropy

it is concluded that the front part clearance flow has greater influence on the compressor than the back part clearance flow.In particular

the vortex-shock interference may worsen the front part clearance flow

as demonstrated by comparing the simulation of two step-clearances.

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Related Institution

School of Energy Science and Engineering, Harbin Institute of Technology

National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics

北京航空航天大学能源与动力工程学院

先进航空发动机协同创新中心

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