空气声学
螺旋桨
雷诺数
Chord(对等)
空气动力学
推进器
计算空气声学
噪音(视频)
声学
雷诺平均Navier-Stokes方程
物理
航空航天工程
海洋工程
机械
计算机科学
工程类
计算流体力学
声压
湍流
人工智能
分布式计算
图像(数学)
作者
Yifei Zhang,Longzhi Zhao,Tianming Zhao,Lu Liu,Lijun Xu
出处
期刊:Journal of physics
[IOP Publishing]
日期:2023-08-01
卷期号:2569 (1): 012026-012026
标识
DOI:10.1088/1742-6596/2569/1/012026
摘要
Abstract Under rapid development, drone propellers are facing two essential problems: noise emission and aerodynamic efficiency. In this work, the aeroacoustics characteristics of two propellers were experimentally and numerically investigated. Both propellers have exactly the same design points, and MTprop-1678 has a thinner blade and larger chord than MTprop-1688. Results showed that the broadband noise of 1678 significantly rose due to a larger Reynolds number, and the total noise was larger. The study shows that reducing the Reynolds number might be a good idea for propellers’ noise reduction.
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