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Airfoil synchronous surging and pitching.

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Title: Airfoil synchronous surging and pitching.
Authors: Strangfeld, C.1,2 (AUTHOR), Müller-Vahl, H.F.3 (AUTHOR), Nayeri, C.N.2 (AUTHOR), Paschereit, C.O.1,2 (AUTHOR), Greenblatt, D.3 (AUTHOR) davidg@technion.ac.il
Source: Journal of Fluid Mechanics. 4/25/2025, Vol. 1009, p1-33. 33p.
Subjects: Unsteady flow (Aerodynamics), Vortex lattice method, Vertical axis wind turbines, Reynolds number, Boundary layer separation, Flutter (Aerodynamics), Motion, Vortex shedding, Wind speed
Abstract: The article focuses on the theoretical and experimental investigation of synchronous surging and pitching of an airfoil, specifically a NACA 0018, at low pre-stall angles of attack. The study employs a combination of theoretical formulations and experimental data to analyze the lift coefficient and the effects of phase differences between surging and pitching. Results indicate that the lift coefficient cannot be accurately predicted by simply superimposing the effects of surging and pitching due to variations in the effective reduced frequency and the influence of bubble bursting on lift generation. The findings highlight the importance of understanding these dynamics for applications in rotorcraft and wind turbine aerodynamics. [Extracted from the article]
Copyright of Journal of Fluid Mechanics is the property of Cambridge University Press 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: 185485866
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
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  Data: Airfoil synchronous surging and pitching.
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  Data: <searchLink fieldCode="AR" term="%22Strangfeld%2C+C%2E%22">Strangfeld, C.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Müller-Vahl%2C+H%2EF%2E%22">Müller-Vahl, H.F.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nayeri%2C+C%2EN%2E%22">Nayeri, C.N.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Paschereit%2C+C%2EO%2E%22">Paschereit, C.O.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Greenblatt%2C+D%2E%22">Greenblatt, D.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> davidg@technion.ac.il</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Fluid+Mechanics%22">Journal of Fluid Mechanics</searchLink>. 4/25/2025, Vol. 1009, p1-33. 33p.
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  Data: <searchLink fieldCode="DE" term="%22Unsteady+flow+%28Aerodynamics%29%22">Unsteady flow (Aerodynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Vortex+lattice+method%22">Vortex lattice method</searchLink><br /><searchLink fieldCode="DE" term="%22Vertical+axis+wind+turbines%22">Vertical axis wind turbines</searchLink><br /><searchLink fieldCode="DE" term="%22Reynolds+number%22">Reynolds number</searchLink><br /><searchLink fieldCode="DE" term="%22Boundary+layer+separation%22">Boundary layer separation</searchLink><br /><searchLink fieldCode="DE" term="%22Flutter+%28Aerodynamics%29%22">Flutter (Aerodynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Motion%22">Motion</searchLink><br /><searchLink fieldCode="DE" term="%22Vortex+shedding%22">Vortex shedding</searchLink><br /><searchLink fieldCode="DE" term="%22Wind+speed%22">Wind speed</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The article focuses on the theoretical and experimental investigation of synchronous surging and pitching of an airfoil, specifically a NACA 0018, at low pre-stall angles of attack. The study employs a combination of theoretical formulations and experimental data to analyze the lift coefficient and the effects of phase differences between surging and pitching. Results indicate that the lift coefficient cannot be accurately predicted by simply superimposing the effects of surging and pitching due to variations in the effective reduced frequency and the influence of bubble bursting on lift generation. The findings highlight the importance of understanding these dynamics for applications in rotorcraft and wind turbine aerodynamics. [Extracted from the article]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Fluid Mechanics is the property of Cambridge University Press 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=185485866
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1017/jfm.2025.220
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 33
        StartPage: 1
    Subjects:
      – SubjectFull: Unsteady flow (Aerodynamics)
        Type: general
      – SubjectFull: Vortex lattice method
        Type: general
      – SubjectFull: Vertical axis wind turbines
        Type: general
      – SubjectFull: Reynolds number
        Type: general
      – SubjectFull: Boundary layer separation
        Type: general
      – SubjectFull: Flutter (Aerodynamics)
        Type: general
      – SubjectFull: Motion
        Type: general
      – SubjectFull: Vortex shedding
        Type: general
      – SubjectFull: Wind speed
        Type: general
    Titles:
      – TitleFull: Airfoil synchronous surging and pitching.
        Type: main
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            NameFull: Strangfeld, C.
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            – D: 25
              M: 04
              Text: 4/25/2025
              Type: published
              Y: 2025
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              Value: 1009
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