Influence of the number of blades on aerodynamic and noise characteristics of counter-rotating propeller

CUI Panwang; FENG Heying; TONG Fan; CHEN Zhengwu

doi:10.7638/kqdlxxb-2022.0205

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Influence of the number of blades on aerodynamic and noise characteristics of counter-rotating propeller

更新时间：2026-05-28

- Influence of the number of blades on aerodynamic and noise characteristics of counter-rotating propeller
- Vol. 41, Issue 12, Pages: 61-73(2023)
- 作者机构：
  
  1. 湖南科技大学机械设备健康维护湖南省重点实验室,湘潭,411201
  2. 中国空气动力研究与发展中心气动噪声控制重点实验室,绵阳,621000
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2022.0205
  CLC： V211.3
- Published：2023
- 稿件说明：
移动端阅览
崔盼望, 冯和英, 仝帆, 等. 桨叶数目对对转螺旋桨气动和噪声特性的影响[J]. 空气动力学学报, 2023, 41(12): 61−73.

CUI Panwang, FENG Heying, TONG Fan, et al. Influence of the number of blades on aerodynamic and noise characteristics of counter-rotating propeller[J]. 2023, 41(12): 61-73.
崔盼望, 冯和英, 仝帆, 等. 桨叶数目对对转螺旋桨气动和噪声特性的影响[J]. 空气动力学学报, 2023, 41(12): 61−73. DOI： 10.7638/kqdlxxb-2022.0205

CUI Panwang, FENG Heying, TONG Fan, et al. Influence of the number of blades on aerodynamic and noise characteristics of counter-rotating propeller[J]. 2023, 41(12): 61-73. DOI： 10.7638/kqdlxxb-2022.0205.

摘要

对转螺旋桨的高效率与低油耗等优点已引起人们越来越多的关注。然而，噪声是对转螺旋桨研制过程中亟需解决的关键问题。基于非线性谐波法和声类比理论，研究了转子桨叶数目对对转螺旋桨气动特性和噪声的影响规律及其物理机制。以某型对转螺旋桨为基准对象，研究了7种不同桨叶数组合的对转螺旋桨模型。研究发现，增加对转螺旋桨前/后排转子桨叶数，前/后排转子拉力系数和功率系数将增大，而其波动幅值则明显减小，但这也将损害对转螺旋桨的总推进效率。提出在增加前/后排转子桨叶数的同时适当降低前/后排转子转速，结果表明，该方案既可以保证对转螺旋桨总推力及总效率不受影响，还可以在干涉噪声频率下，获得比单纯增加桨叶数更明显、更宽广的降噪效果。

Abstract

The advantages of high efficiency and low fuel consumption of the contra-rotating propellers have attracted more and more attention. However

noise is the key problem that needs to be solved urgently in the development process of the contra-rotating propeller. Based on the nonlinear harmonic method and the theory of acoustic analogy

the influence of the number of rotor blades on the aerodynamic characteristics and noise of the contra-rotating propeller and its physical mechanism are studied. Taking a certain type of contra-rotating propeller as the reference object

seven kinds of contra-rotating propeller models with different combinations of blade numbers were studied. The study found that increasing the number of blades in the front/rear rotors of the contra-rotating propeller will increase the tension coefficient and power coefficient of the front/rear rotors

and the fluctuation amplitude will be significantly reduced

but it will also damage the total propulsion efficiency of the contra-rotating propeller. The paper proposes to increase the number of front/rear rotor blades while appropriately reducing the front/rear rotor speed. The results show that this scheme has two beneficial facets: On the one hand it ensure the total thrust and total efficiency of the counter-rotating propeller to be unaffected; on the other hand

under the interference noise frequency

it can obtain a more obvious and wider noise reduction effect than simply increasing the number of blades.

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references

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