No Cover Image

Journal article 93 views 13 downloads

The role of porous structure on airfoil turbulence interaction noise reduction

L. Bowen Orcid Logo, Alper Celik Orcid Logo, M. F. Westin Orcid Logo, M. Azarpeyvand Orcid Logo

Physics of Fluids, Volume: 36, Issue: 2

Swansea University Author: Alper Celik Orcid Logo

  • 65597.VOR.pdf

    PDF | Version of Record

    Copyright: 2024 Author(s). Released under the terms of a Creative Commons Attribution (CC BY) license.

    Download (9.55MB)

Check full text

DOI (Published version): 10.1063/5.0186501

Abstract

Experiments are performed to investigate the effect of porous treatment structure used at the leading edge on the aerodynamic and aeroacoustic characteristics of a National Advisory Committee for Aeronautics (NACA) 0012 airfoil. Three different triply periodic minimal surface porous structures of co...

Full description

Published in: Physics of Fluids
ISSN: 1070-6631 1089-7666
Published: AIP Publishing 2024
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa65597
Tags: Add Tag
No Tags, Be the first to tag this record!
first_indexed 2024-04-04T12:25:19Z
last_indexed 2024-04-04T12:25:19Z
id cronfa65597
recordtype SURis
fullrecord <?xml version="1.0" encoding="utf-8"?><rfc1807 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><bib-version>v2</bib-version><id>65597</id><entry>2024-02-08</entry><title>The role of porous structure on airfoil turbulence interaction noise reduction</title><swanseaauthors><author><sid>3cb1f558a4b194101105e9c1e8d59cbf</sid><ORCID>0000-0002-2492-4625</ORCID><firstname>Alper</firstname><surname>Celik</surname><name>Alper Celik</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2024-02-08</date><deptcode>AERO</deptcode><abstract>Experiments are performed to investigate the effect of porous treatment structure used at the leading edge on the aerodynamic and aeroacoustic characteristics of a National Advisory Committee for Aeronautics (NACA) 0012 airfoil. Three different triply periodic minimal surface porous structures of constant porosity are studied to explore their effect on the flow field and the relationship between airfoil response and far-field noise. The results show that the ratio between the porous structure pore size and the length scale of the turbulent flow plays an important role in the noise reduction capability of a porous leading edge. Changes to the turbulent flow properties in the vicinity of the airfoil are assessed to characterize the contributing physical behavior responsible for far-field noise manipulation. Velocity field analysis in front of the leading edge demonstrates a pronounced difference among porous structures. Furthermore, close to the airfoil surface and off from the stagnation line, all porous leading edges demonstrate a marked reduction in the low-frequency content of the velocity fluctuations. These results demonstrate the importance of the airfoil leading edge region and not just the stagnation line. The strong link evident in pressure–velocity coherence analysis of the solid airfoil is broken by the introduction of the porous leading edge. Furthermore, the porous leading edges reduce the near-field to far-field pressure coherence in both magnitude and frequency range.</abstract><type>Journal Article</type><journal>Physics of Fluids</journal><volume>36</volume><journalNumber>2</journalNumber><paginationStart/><paginationEnd/><publisher>AIP Publishing</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>1070-6631</issnPrint><issnElectronic>1089-7666</issnElectronic><keywords/><publishedDay>7</publishedDay><publishedMonth>2</publishedMonth><publishedYear>2024</publishedYear><publishedDate>2024-02-07</publishedDate><doi>10.1063/5.0186501</doi><url/><notes>Data availability: The data that support the findings of this study are available from the corresponding author upon reasonable request.</notes><college>COLLEGE NANME</college><department>Aerospace Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>AERO</DepartmentCode><institution>Swansea University</institution><apcterm>Another institution paid the OA fee</apcterm><funders>The first author (L.B.) would like to acknowledge the financial support of Embraer S.A. and an Engineering and Physical Sciences Research Council doctoral training partnership (EPSRC DTP). The second author (A.C.) was sponsored by EPSRC via Grant No. EP/ S013024/1 at the University of Bristol from 1/6/2020 to 1/12/2022. All authors would like to acknowledge the financial support of EPSRC via Grant No. EP/S013024/1.</funders><projectreference/><lastEdited>2024-04-04T13:27:58.7998816</lastEdited><Created>2024-02-08T12:57:56.8731596</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering</level></path><authors><author><firstname>L.</firstname><surname>Bowen</surname><orcid>0000-0001-7513-428x</orcid><order>1</order></author><author><firstname>Alper</firstname><surname>Celik</surname><orcid>0000-0002-2492-4625</orcid><order>2</order></author><author><firstname>M. F.</firstname><surname>Westin</surname><orcid>0000-0001-9333-5835</orcid><order>3</order></author><author><firstname>M.</firstname><surname>Azarpeyvand</surname><orcid>0000-0001-7826-7635</orcid><order>4</order></author></authors><documents><document><filename>65597__29917__32e97a1d440f4ee781d72f15a162119b.pdf</filename><originalFilename>65597.VOR.pdf</originalFilename><uploaded>2024-04-04T13:26:17.7854099</uploaded><type>Output</type><contentLength>10012156</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>Copyright: 2024 Author(s). Released under the terms of a Creative Commons Attribution (CC BY) license.</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>http://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling v2 65597 2024-02-08 The role of porous structure on airfoil turbulence interaction noise reduction 3cb1f558a4b194101105e9c1e8d59cbf 0000-0002-2492-4625 Alper Celik Alper Celik true false 2024-02-08 AERO Experiments are performed to investigate the effect of porous treatment structure used at the leading edge on the aerodynamic and aeroacoustic characteristics of a National Advisory Committee for Aeronautics (NACA) 0012 airfoil. Three different triply periodic minimal surface porous structures of constant porosity are studied to explore their effect on the flow field and the relationship between airfoil response and far-field noise. The results show that the ratio between the porous structure pore size and the length scale of the turbulent flow plays an important role in the noise reduction capability of a porous leading edge. Changes to the turbulent flow properties in the vicinity of the airfoil are assessed to characterize the contributing physical behavior responsible for far-field noise manipulation. Velocity field analysis in front of the leading edge demonstrates a pronounced difference among porous structures. Furthermore, close to the airfoil surface and off from the stagnation line, all porous leading edges demonstrate a marked reduction in the low-frequency content of the velocity fluctuations. These results demonstrate the importance of the airfoil leading edge region and not just the stagnation line. The strong link evident in pressure–velocity coherence analysis of the solid airfoil is broken by the introduction of the porous leading edge. Furthermore, the porous leading edges reduce the near-field to far-field pressure coherence in both magnitude and frequency range. Journal Article Physics of Fluids 36 2 AIP Publishing 1070-6631 1089-7666 7 2 2024 2024-02-07 10.1063/5.0186501 Data availability: The data that support the findings of this study are available from the corresponding author upon reasonable request. COLLEGE NANME Aerospace Engineering COLLEGE CODE AERO Swansea University Another institution paid the OA fee The first author (L.B.) would like to acknowledge the financial support of Embraer S.A. and an Engineering and Physical Sciences Research Council doctoral training partnership (EPSRC DTP). The second author (A.C.) was sponsored by EPSRC via Grant No. EP/ S013024/1 at the University of Bristol from 1/6/2020 to 1/12/2022. All authors would like to acknowledge the financial support of EPSRC via Grant No. EP/S013024/1. 2024-04-04T13:27:58.7998816 2024-02-08T12:57:56.8731596 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering L. Bowen 0000-0001-7513-428x 1 Alper Celik 0000-0002-2492-4625 2 M. F. Westin 0000-0001-9333-5835 3 M. Azarpeyvand 0000-0001-7826-7635 4 65597__29917__32e97a1d440f4ee781d72f15a162119b.pdf 65597.VOR.pdf 2024-04-04T13:26:17.7854099 Output 10012156 application/pdf Version of Record true Copyright: 2024 Author(s). Released under the terms of a Creative Commons Attribution (CC BY) license. true eng http://creativecommons.org/licenses/by/4.0/
title The role of porous structure on airfoil turbulence interaction noise reduction
spellingShingle The role of porous structure on airfoil turbulence interaction noise reduction
Alper Celik
title_short The role of porous structure on airfoil turbulence interaction noise reduction
title_full The role of porous structure on airfoil turbulence interaction noise reduction
title_fullStr The role of porous structure on airfoil turbulence interaction noise reduction
title_full_unstemmed The role of porous structure on airfoil turbulence interaction noise reduction
title_sort The role of porous structure on airfoil turbulence interaction noise reduction
author_id_str_mv 3cb1f558a4b194101105e9c1e8d59cbf
author_id_fullname_str_mv 3cb1f558a4b194101105e9c1e8d59cbf_***_Alper Celik
author Alper Celik
author2 L. Bowen
Alper Celik
M. F. Westin
M. Azarpeyvand
format Journal article
container_title Physics of Fluids
container_volume 36
container_issue 2
publishDate 2024
institution Swansea University
issn 1070-6631
1089-7666
doi_str_mv 10.1063/5.0186501
publisher AIP Publishing
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering
document_store_str 1
active_str 0
description Experiments are performed to investigate the effect of porous treatment structure used at the leading edge on the aerodynamic and aeroacoustic characteristics of a National Advisory Committee for Aeronautics (NACA) 0012 airfoil. Three different triply periodic minimal surface porous structures of constant porosity are studied to explore their effect on the flow field and the relationship between airfoil response and far-field noise. The results show that the ratio between the porous structure pore size and the length scale of the turbulent flow plays an important role in the noise reduction capability of a porous leading edge. Changes to the turbulent flow properties in the vicinity of the airfoil are assessed to characterize the contributing physical behavior responsible for far-field noise manipulation. Velocity field analysis in front of the leading edge demonstrates a pronounced difference among porous structures. Furthermore, close to the airfoil surface and off from the stagnation line, all porous leading edges demonstrate a marked reduction in the low-frequency content of the velocity fluctuations. These results demonstrate the importance of the airfoil leading edge region and not just the stagnation line. The strong link evident in pressure–velocity coherence analysis of the solid airfoil is broken by the introduction of the porous leading edge. Furthermore, the porous leading edges reduce the near-field to far-field pressure coherence in both magnitude and frequency range.
published_date 2024-02-07T13:27:55Z
_version_ 1795407138372190208
score 11.016593

Similar Items