Numerical Research on Optimization and Flow Mechanism in Lift Fan Stator

doi:10.7652/xjtuxb201705022

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Numerical Research on Optimization and Flow Mechanism in Lift Fan Stator

更新时间：2025-07-09

- Numerical Research on Optimization and Flow Mechanism in Lift Fan Stator
- Vol. 51, Issue 5, Pages: 156-164(2017)
- 作者机构：
  
  西北工业大学动力与能源学院,西安,710129
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201705022
  CLC： TH42;U664
- Online First：10 May 2017，
  
  Published：2017
- 稿件说明：
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Numerical Research on Optimization and Flow Mechanism in Lift Fan Stator[J]. 2017, 51(5): 156-164.
DOI：

Numerical Research on Optimization and Flow Mechanism in Lift Fan Stator[J]. 2017, 51(5): 156-164. DOI： 10.7652/xjtuxb201705022.

摘要

以气垫船大型垫升轴流风扇为研究对象

在保证网格无关性及总性能数值结果与试验结果相吻合的基础上

结合人工神经网络技术及遗传算法对静叶中弧线开展优化设计

分析静叶叶型及风扇总性能变化情况。在流量系数分别为0.28、0.35、0.45的3种工况点

研究了原始静叶及优化后静叶通道内部流动机理

揭示了影响静叶内部流动稳定性的原因

由此提出了减小静叶通道内流动损失的方法。研究结果表明:通过优化静叶几何进、出口角

即减小攻角、略微增大落后角

在主要流量工况范围内可抑制通道内的二次流流动

在保证压力不降的情况下提升效率、降低功率

其中设计流量工况点效率提升达7%以上; 在静叶上

通过减小几何进口角、增大几何出口角

可以起到调整叶片表面载荷分布、降低流动损失、提高气体通流能力的作用。该结果可为研究叶轮机械内部复杂流动提供参考。

Abstract

Aiming at a large-scale lift axial flow fan

the optimization design of blade camber curves is implemented with artificial neural network and genetic algorithm for the axial flow fan stator. The used grid is proven to be independent and the numerical results of fan performance match the test results well. The performance and stator blade profiles of the fan are analyzed for the original and optimized situations. As the mass flow coefficient is 0.28

0.35 and 0.45

the flow mechanism is discussed to demonstrate the effect on stability

hence a method for reducing flow loss in the stator is proposed. The results show that reducing the attack angle and slightly increasing backward angle can suppress the secondary flow within the flow channel under main operating conditions by optimizing inlet and outlet angles of the stator. The optimized structure is able to maintain the pressure rise

improve the efficiency and reduce the power. At the design point

the efficiency is increased by over 7%. For the stator blade

reducing the inlet angle and increasing the outlet angle can adjust load distributions on the blade surface

reduce flow loss and enhance gas flow capacity.

关键词

Keywords

references

WANG Y, LI Y, CHEN J. Analysis of the unsteady flow in compressor cascade with pod method: 2016-GT-57638 [R]. New York, USA: ASME, 2016.

张晨凯, 胡骏, 王志强, 等. 低速轴流压气机转子叶片三维优化的数值研究 [J]. 航空动力学报, 2015, 30(2): 483-490.

ZHANG Chenkai, HU Jun, WANG Zhiqiang, et al. Numerical study on three-dimensional optimization of low-speed axial compressor rotor blade [J]. Journal of Aerospace Power, 2015, 30(2): 483-490.

KIM J H, BAVUUDORJ O, CHA K H. Optimization of the aerodynamic and aeroacoustic performance of an axial-flow fan [J]. AIAA Journal, 2014, 52(9): 2032-2044.

WANG W, CHU W, ZHANG H. Numerical investigation on the effect of a plenum chamber with slot-type casing treatment on the performance of an axial transonic compressor [J]. Proc IMechE: Part A J Power and Energy, 2015, 229(4): 393-405.

ANDRÉ I, CYRIL G, ANDREAS H. Difference in the working principle of axial slot and tip blowing casing treatments: 2016-GT-56966 [R]. New York, USA: ASME, 2016.

张鹏, 刘波, 毛晓晨. 三维造型和非轴对称端壁在跨声速压气机中的应用 [J]. 推进技术, 2016, 37(2): 250-257.

ZHANG Peng, LIU Bo, MAO Xiaochen, et al. Application of 3D blading and non-axisymmetric endwall in a transonic compressor [J]. Journal of Propulsion Technology, 2016, 37(2): 250-257.

HUIMIN T, SHUAIQIANG L, HUALING L. Design optimization of profiled endwall with consideration of cooling and rim seal flow effects: 2016-GT-57219 [R]. New York, USA: ASME, 2016.

ABDUS S, KIM K Y. Multi-objective optimization of an axial compressor blade [J]. Journal of Mechanical Science and Technology, 2008(22): 999-1007.

HUANLONG C, MARK G, KIRAN S, et al. Vorticity dynamics based flow diagnosis for a 1.5-stage high pressure compressor with an optimized transonic rotor: 2016-GT-56682 [R]. New York, USA: ASME, 2016.

金东海, 李泯江, 桂幸民. 高负荷低速轴流风扇数值优化设计与实验研究 [J]. 推进技术, 2009, 30(6): 696-702.

JIN Donghai, LI Minjiang, GUI Xingmin. Numerical design optimization of a high-loaded low-speed axial-flow fan and experimental research [J]. Journal of Propulsion Technology, 2009, 30(6): 696-702.

KHALIL M K, MAHMOUDA S, AL-DADAHA R K, et al. Impact of skin friction, tip clearance and trailing edge losses on small scale cryogenic axial turbine performance: 2016-GT-57843 [R]. New York, USA: ASME, 2016.

SHRAMAN N G, PROF M G. Effect of sweep on performance of an axial compressor with casing grooves: 2016-GT-56045 [R]. New York, USA: ASME, 2016: 90-91.

何川, 郭立君. 泵与风机 [M]. 北京: 中国电力出版社, 2008: 90-91.

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