尖端翼位置对尖端流量和轴流风扇噪声的影响
Lei Diao1, Fahua Ge1, Yong Liu1
1Guizhou Aerospace Linquan Motor Co.,Ltd, Guiyang, Guizhou, 550081, China.
Heliyon
|August 14, 2023
概括
测试了三种叶片尖翼设计 (TSW,SSW,PSW) 用于轴流风扇. 这些翼板有效地减少了泄漏流量和风扇噪声,SSW显示了最显著的噪声降低.
科学领域:
- 流体动力学 流体动力学
- 声学 声学 在声学方面
- 空气动力学 在空气动力学.
背景情况:
- 叶片尖泄漏流量显著影响轴流风扇的性能和噪音.
- 优化叶片尖的几何形状对于提高风扇效率和减少声音排放至关重要.
研究的目的:
- 为了研究不同叶片尖翼片位置对轴流风扇内部流量和噪声特征的影响.
- 评估TSW,SSW和PSW叶片设计在管理尖端泄漏流量和抑制噪音方面的性能.
主要方法:
- 使用刀尖分区方法的数值模拟被用于分析流量和噪声.
- 通过实验验证来验证模拟模型的准确性.
- 提出并分析了三种不同的叶片尖翼设计 (TSW,SSW,PSW).
主要成果:
- TSW,SSW和PSW刀片有效地减少了Z1和Z2区域的刀片尖泄漏流量,并抑制了Z3的传播.
- 与原始 (Ori) 叶片相比,SSW和PSW叶片的总压力损失增加,而TSW在低叶片高度时显示出更高的总压力差异.
- TSW刀片最好改进刀片尖端堵塞,所有翅膀设计都减少了对主流的泄漏流.
- 所有叶片尖翼设计都改善了风扇离散噪声,SSW实现了总声压水平 (高达3.74dB) 的最大降低.
结论:
- 叶片尖翼提供了一个可行的策略,以减轻泄漏流量和减少轴流风扇中的噪音.
- SSW叶片设计展示了最有效的整体降噪,突出了其在空气动力学噪声控制应用中的潜力.
- 翼孔设计显著影响内部流量模式,压力分布和声学性能,需要在风扇工程中仔细考虑.
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