进口间隙对无蜗壳离心风机音调噪声的影响

IF 1.3 Q2 ENGINEERING, AEROSPACE

International Journal of Turbomachinery, Propulsion and Power Pub Date : 2022-11-18 DOI:10.3390/ijtpp7040033

M. Ottersten, H. Yao, L. Davidson

{"title":"进口间隙对无蜗壳离心风机音调噪声的影响","authors":"M. Ottersten, H. Yao, L. Davidson","doi":"10.3390/ijtpp7040033","DOIUrl":null,"url":null,"abstract":"In this study, three voluteless centrifugal fans are compared for their aeroacoustic performances. The tonal noise is predicted by coupling the IDDES with Formulation 1A of Farassat. The sources of the tonal noise at the blade passing frequency (BPF) are identified. It is found that the sources are related to the fan inlet gap, which introduces higher velocity intensities and turbulent fluctuations interacting with the blade leading edge. By redesigning the gap, the tonal noise at the BPF is reduced effectively.","PeriodicalId":36626,"journal":{"name":"International Journal of Turbomachinery, Propulsion and Power","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Inlet Gap Effect on Tonal Noise Generated from a Voluteless Centrifugal Fan\",\"authors\":\"M. Ottersten, H. Yao, L. Davidson\",\"doi\":\"10.3390/ijtpp7040033\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this study, three voluteless centrifugal fans are compared for their aeroacoustic performances. The tonal noise is predicted by coupling the IDDES with Formulation 1A of Farassat. The sources of the tonal noise at the blade passing frequency (BPF) are identified. It is found that the sources are related to the fan inlet gap, which introduces higher velocity intensities and turbulent fluctuations interacting with the blade leading edge. By redesigning the gap, the tonal noise at the BPF is reduced effectively.\",\"PeriodicalId\":36626,\"journal\":{\"name\":\"International Journal of Turbomachinery, Propulsion and Power\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2022-11-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Turbomachinery, Propulsion and Power\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3390/ijtpp7040033\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, AEROSPACE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Turbomachinery, Propulsion and Power","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/ijtpp7040033","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, AEROSPACE","Score":null,"Total":0}

引用次数: 1

摘要

在本研究中，对三种无蜗壳离心风机的气动声学性能进行了比较。通过将IDDES与Farassat的公式1A相耦合来预测音调噪声。识别叶片通过频率（BPF）下的音调噪声的来源。研究发现，这些来源与风扇入口间隙有关，该间隙引入了更高的速度强度和与叶片前缘相互作用的湍流波动。通过重新设计间隙，可以有效地降低BPF处的音调噪声。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Inlet Gap Effect on Tonal Noise Generated from a Voluteless Centrifugal Fan

In this study, three voluteless centrifugal fans are compared for their aeroacoustic performances. The tonal noise is predicted by coupling the IDDES with Formulation 1A of Farassat. The sources of the tonal noise at the blade passing frequency (BPF) are identified. It is found that the sources are related to the fan inlet gap, which introduces higher velocity intensities and turbulent fluctuations interacting with the blade leading edge. By redesigning the gap, the tonal noise at the BPF is reduced effectively.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

International Journal of Turbomachinery, Propulsion and Power Engineering-Aerospace Engineering

CiteScore

2.30

自引率

21.40%

发文量

审稿时长

11 weeks