几种仿生翼型动态失速特性的数值分析

吴立明; 姜怡欣; 刘小民; 覃万翔; 席光

doi:10.7652/xjtuxb202209001

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几种仿生翼型动态失速特性的数值分析

专题仿生功能结构设计及应用 | 更新时间：2025-07-09

- 几种仿生翼型动态失速特性的数值分析
- Numerical Analysis of Dynamic Stall Characteristics of Several Bionic Airfoils
- 西安交通大学学报 2022年56卷第9期页码：1-9
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院,西安,710049
  2. 广东顺威精密塑料股份有限公司,广东,佛山,528305
- 作者简介：
  
  : 2022-01-22。作者简介: 吴立明(1987—),男,博士生
  刘小民(通信作者),男,教授,博士生导师。基金项目: 国家重点研发计划资助项目(2019YFB1504601)
- 基金信息：
  
  : 2022-01-22。作者简介: 吴立明(1987—),男,博士生;刘小民(通信作者),男,教授,博士生导师。基金项目: 国家重点研发计划资助项目(2019YFB1504601);国家自然科学基金资助项目(51676152)
- DOI：10.7652/xjtuxb202209001
  中图分类号： TK5;TK01
- 网络首发：2022-09-10，
  
  纸质出版：2022
- 稿件说明：
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吴立明, 姜怡欣, 刘小民, 等. 几种仿生翼型动态失速特性的数值分析[J]. 西安交通大学学报, 2022,56(9):1-9.

WU Liming, JIANG Yixin, LIU Xiaomin, et al. Numerical Analysis of Dynamic Stall Characteristics of Several Bionic Airfoils[J]. 2022, 56(9): 1-9.
吴立明, 姜怡欣, 刘小民, 等. 几种仿生翼型动态失速特性的数值分析[J]. 西安交通大学学报, 2022,56(9):1-9. DOI： 10.7652/xjtuxb202209001.

WU Liming, JIANG Yixin, LIU Xiaomin, et al. Numerical Analysis of Dynamic Stall Characteristics of Several Bionic Airfoils[J]. 2022, 56(9): 1-9. DOI： 10.7652/xjtuxb202209001.

摘要

为提高叶轮机械运行的稳定性

常需要设计获得一种具有高升力特性和良好稳定性的翼型。受自然界中具有不同飞行特性的鸟类翅膀的启发

本文首先以海鸥、雀鹰、长耳鸮、水鸭4种鸟类为仿生对象

对沿翅膀展向40%截面位置处的翅膀轮廓形状进行仿生重构

获得4种仿生翼型。然后

对4种仿生翼型的动态失速特性进行数值模拟

通过对比分析4种仿生翼型的动态气动特性得出:在Re=2.0×10

工况下

仿海鸥翼型的平稳性最好

阻力峰值在4种仿生翼型中最低; 仿雀鹰翼型仅上仰阶段的升力系数小于仿海鸥翼型

仿雀鹰翼型的平稳性与仿海鸥翼型类似; 尽管仿长耳鸮翼型的升力系数峰值最大

但是其动态迟滞现象明显; 仿水鸭翼型产生的阻力最大

平稳性也相对较差。综上

仿海鸥翼型具有良好的稳定性和较低的阻力峰值

从而为叶轮机械优化设计和气动性能改善提供了有价值的参考翼型。

Abstract

The aerodynamic performance of the airfoil determines the quality of the final product of turbomachinery. To improve the operation stability of turbomachinery

it is necessary to design an airfoil with high lift characteristics and good stability. Inspired by the wings of birds with different flight characteristics in nature

four kinds of bird(seagull

hawk

long-eared owl

and teal)are taken as the bionic objects in this paper. Firstly

four bionic airfoils are obtained by reconstructing of the wing profile at 40% cross-section along the wingspan. Secondly

the dynamic stall characteristics of the four bionic airfoils are numerical

ly simulated. Finally

the dynamic aerodynamic characteristics of the four bionic airfoils are analyzed and compared. The results show that under the condition of Re=2.0×10

the seagull airfoil has the best stability and the lowest drag coefficient among the four bionic airfoils

the hawk airfoil has a lift coefficient lower than that of the seagull airfoil only in the nose-up pitch phase and has a stability similar to that of the seagull airfoil

the owl airfoil has the largest lift coefficient but has obvious dynamic hysteresis

the seagull airfoil has the largest drag coefficient and poor stability. In conclusion

the bionic seagull airfoil has good stability and low drag coefficient

which provides a valuable reference airfoil for the optimization design and the aerodynamic performance improvement of turbomachinery.

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