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Effect of tip winglet position on tip flow and noise of axial flow fan

In order to investigate the impact of blade tip winglet position on the internal flow and noise characteristics of axial flow fans,three different blade tip winglets,namely the TSW blade, the SSW blade, and the PSW blade,were hereby proposed. The accuracy of the simulation model was verified through...

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Detalles Bibliográficos
Autores principales: Diao, Lei, Ge, Fahua, Liu, Yong, Yang, Lin, Liu, Youen, Huang, Qi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10412879/
https://www.ncbi.nlm.nih.gov/pubmed/37576320
http://dx.doi.org/10.1016/j.heliyon.2023.e18483
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author Diao, Lei
Ge, Fahua
Liu, Yong
Yang, Lin
Liu, Youen
Huang, Qi
author_facet Diao, Lei
Ge, Fahua
Liu, Yong
Yang, Lin
Liu, Youen
Huang, Qi
author_sort Diao, Lei
collection PubMed
description In order to investigate the impact of blade tip winglet position on the internal flow and noise characteristics of axial flow fans,three different blade tip winglets,namely the TSW blade, the SSW blade, and the PSW blade,were hereby proposed. The accuracy of the simulation model was verified through experiments, and the circumferential internal flow characteristics and noise characteristics of these different blades were studied by numerical simulation using the blade tip partition method. The calculation results indicated the high-level efficiency of TSW, SSW and PSW blades in reducing the blade tip leakage flow in Z1 and Z2 regions and suppressing its circumferential propagation in the Z3 region. Besides, it was found that SSW blade and PSW blade had larger total pressure loss relative to Ori blade, and that TSW had higher total pressure difference at low blade height. Additionally TSW blades performed the best in improving the blade tip blockage,while TSW, SSW and PSW blades effectively reduced the leakage flow against the main stream, and blade tip winglet blades could effectively improve the fan discrete noise, SSW had the most significant noise reduction effect in the total sound pressure level, and in the overall blade,Z1, Z2 and Z3 were reduced by 2.16 dB,1.68 dB,2.24 dB and 3.74 dB.
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spelling pubmed-104128792023-08-11 Effect of tip winglet position on tip flow and noise of axial flow fan Diao, Lei Ge, Fahua Liu, Yong Yang, Lin Liu, Youen Huang, Qi Heliyon Research Article In order to investigate the impact of blade tip winglet position on the internal flow and noise characteristics of axial flow fans,three different blade tip winglets,namely the TSW blade, the SSW blade, and the PSW blade,were hereby proposed. The accuracy of the simulation model was verified through experiments, and the circumferential internal flow characteristics and noise characteristics of these different blades were studied by numerical simulation using the blade tip partition method. The calculation results indicated the high-level efficiency of TSW, SSW and PSW blades in reducing the blade tip leakage flow in Z1 and Z2 regions and suppressing its circumferential propagation in the Z3 region. Besides, it was found that SSW blade and PSW blade had larger total pressure loss relative to Ori blade, and that TSW had higher total pressure difference at low blade height. Additionally TSW blades performed the best in improving the blade tip blockage,while TSW, SSW and PSW blades effectively reduced the leakage flow against the main stream, and blade tip winglet blades could effectively improve the fan discrete noise, SSW had the most significant noise reduction effect in the total sound pressure level, and in the overall blade,Z1, Z2 and Z3 were reduced by 2.16 dB,1.68 dB,2.24 dB and 3.74 dB. Elsevier 2023-07-23 /pmc/articles/PMC10412879/ /pubmed/37576320 http://dx.doi.org/10.1016/j.heliyon.2023.e18483 Text en © 2023 The Authors. Published by Elsevier Ltd. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
Diao, Lei
Ge, Fahua
Liu, Yong
Yang, Lin
Liu, Youen
Huang, Qi
Effect of tip winglet position on tip flow and noise of axial flow fan
title Effect of tip winglet position on tip flow and noise of axial flow fan
title_full Effect of tip winglet position on tip flow and noise of axial flow fan
title_fullStr Effect of tip winglet position on tip flow and noise of axial flow fan
title_full_unstemmed Effect of tip winglet position on tip flow and noise of axial flow fan
title_short Effect of tip winglet position on tip flow and noise of axial flow fan
title_sort effect of tip winglet position on tip flow and noise of axial flow fan
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10412879/
https://www.ncbi.nlm.nih.gov/pubmed/37576320
http://dx.doi.org/10.1016/j.heliyon.2023.e18483
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