View in EDS

Investigation of the Aerodynamic and Aeroacoustic Performance of Tilting Ducted Fans.

Saved in:
Bibliographic Details
Title: Investigation of the Aerodynamic and Aeroacoustic Performance of Tilting Ducted Fans.
Authors: Meng, Han1 (AUTHOR), Song, Fuqiang2 (AUTHOR), Gu, Yijuan2 (AUTHOR), Lu, Zhenbo3 (AUTHOR) Luzhb7@mail.sysu.edu.cn
Source: Journal of Aerospace Engineering. Mar2026, Vol. 39 Issue 2, p1-15. 15p.
Subjects: Aerodynamics, Aeroacoustics, Aerofoils, Aerospace technology, Noise control, Flow separation
Abstract: This study presents a detailed experimental and numerical investigation into the aerodynamic and aeroacoustic performance of a tilting ducted fan based on a NACA 0018 airfoil. Tests were conducted in an anechoic wind tunnel under hover (varying tip Mach numbers and clearances) and cruise (varying wind speeds and angles of attack) conditions. The key findings revealed that the ducted configuration provides a significant thrust enhancement of up to 15.8% compared with an isolated propeller, without a measurable increase in overall broadband noise from reducing the tip clearance. Furthermore, the duct fundamentally altered the acoustic directivity, shifting the point of minimum noise downstream of the rotor disk due to its shielding effect. Under cruise conditions, the noise level attains a distinct peak at specific angles of attack (10°–15°), a phenomenon linked via large-eddy simulation (LES) to flow separation and vortex shedding on the duct's outer wall. This work provides critical insights for the design and optimization of low-noise propulsion systems for electric vertical take-off and landing (eVTOL) applications. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Aerospace Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 190910566
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Investigation of the Aerodynamic and Aeroacoustic Performance of Tilting Ducted Fans.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Meng%2C+Han%22">Meng, Han</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Fuqiang%22">Song, Fuqiang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gu%2C+Yijuan%22">Gu, Yijuan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lu%2C+Zhenbo%22">Lu, Zhenbo</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> Luzhb7@mail.sysu.edu.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Aerospace+Engineering%22">Journal of Aerospace Engineering</searchLink>. Mar2026, Vol. 39 Issue 2, p1-15. 15p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Aerodynamics%22">Aerodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Aeroacoustics%22">Aeroacoustics</searchLink><br /><searchLink fieldCode="DE" term="%22Aerofoils%22">Aerofoils</searchLink><br /><searchLink fieldCode="DE" term="%22Aerospace+technology%22">Aerospace technology</searchLink><br /><searchLink fieldCode="DE" term="%22Noise+control%22">Noise control</searchLink><br /><searchLink fieldCode="DE" term="%22Flow+separation%22">Flow separation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study presents a detailed experimental and numerical investigation into the aerodynamic and aeroacoustic performance of a tilting ducted fan based on a NACA 0018 airfoil. Tests were conducted in an anechoic wind tunnel under hover (varying tip Mach numbers and clearances) and cruise (varying wind speeds and angles of attack) conditions. The key findings revealed that the ducted configuration provides a significant thrust enhancement of up to 15.8% compared with an isolated propeller, without a measurable increase in overall broadband noise from reducing the tip clearance. Furthermore, the duct fundamentally altered the acoustic directivity, shifting the point of minimum noise downstream of the rotor disk due to its shielding effect. Under cruise conditions, the noise level attains a distinct peak at specific angles of attack (10°–15°), a phenomenon linked via large-eddy simulation (LES) to flow separation and vortex shedding on the duct's outer wall. This work provides critical insights for the design and optimization of low-noise propulsion systems for electric vertical take-off and landing (eVTOL) applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Aerospace Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=190910566
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1061/JAEEEZ.ASENG-6731
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 1
    Subjects:
      – SubjectFull: Aerodynamics
        Type: general
      – SubjectFull: Aeroacoustics
        Type: general
      – SubjectFull: Aerofoils
        Type: general
      – SubjectFull: Aerospace technology
        Type: general
      – SubjectFull: Noise control
        Type: general
      – SubjectFull: Flow separation
        Type: general
    Titles:
      – TitleFull: Investigation of the Aerodynamic and Aeroacoustic Performance of Tilting Ducted Fans.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Meng, Han
      – PersonEntity:
          Name:
            NameFull: Song, Fuqiang
      – PersonEntity:
          Name:
            NameFull: Gu, Yijuan
      – PersonEntity:
          Name:
            NameFull: Lu, Zhenbo
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 08931321
          Numbering:
            – Type: volume
              Value: 39
            – Type: issue
              Value: 2
          Titles:
            – TitleFull: Journal of Aerospace Engineering
              Type: main
ResultId 1