分析解决方案和空气动力学噪声的分析诱导的流相互作用的板与双波长的生物拉带领边缘带动的边缘
Chenye Tian1, Xiaomin Liu1, Lei Wang1,2
1School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
Biomimetics (Basel, Switzerland)
|April 25, 2025
概括
双波长前端纹显著减少平板中的空气动力学噪声. 有特定形状和根裂的优化设计可实现高达0.7dB的额外降噪.
科学领域:
- 流体动力学 流体动力学
- 声学 声学 在声学上.
- 空气动力学 在空气动力学.
背景情况:
- 领先的纹是生物流量控制结构,可以抑制气翼气动噪声.
- 由于相位干扰,双波长具提供了比单波长具更大的降噪潜力.
研究的目的:
- 为了减少平面板在稳定均流动中的空气动力学噪音,使用优化的双波长前端纹.
- 为了研究不同的形和根基修改对噪声特征的影响.
主要方法:
- 使用基于Ayton分析模型的元启发式算法,优化双波长前沿.
- 对辐射积分函数和沿平板前边的声压进行分析.
- 数字研究揭示了降噪机制.
主要成果:
- 凸起的正弦形和铁形纹有效地减少了在第一个拐点之前的空气动力学噪声.
- 凸的形纹显示出更明显的降低高频噪声.
- 在优化的根部嵌入切口可提供额外的0.7dB噪声降低.
结论:
- 优化的双波长前端,特别是具有特定的形状和根裂,可以显著减少平板气动噪声.
- 这项研究揭示了一种合的降噪机制,涉及根和嵌入式切口.
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