Aerodynamic and Aeroacoustic Simulations of a Wind Turbine Airfoil Employing a New Transitional IDDES Method.
Saved in:
| Title: | Aerodynamic and Aeroacoustic Simulations of a Wind Turbine Airfoil Employing a New Transitional IDDES Method. |
|---|---|
| Authors: | Ghimire, Sandip1,2, Ni, Xiang3, Wang, Yue1,2 yuewang@nwpu.edu.cn, Ma, Yiyuan1,2, Zafar, Fahad Ullah1,2 |
| Source: | Journal of Fluids Engineering. Apr2026, Vol. 148 Issue 4, p1-13. 13p. |
| Subjects: | Wind turbine aerodynamics, Transition flow, Boundary layer (Aerodynamics), Computational fluid dynamics, Aeroacoustics, Aerodynamics |
| Abstract: | The aerodynamic and aeroacoustic performance of wind turbines is strongly influenced by boundary layer transition, especially over thick trailing-edge airfoils commonly used near the blade root. Accurate prediction of transitional flow behavior is therefore critical for optimizing wind turbine efficiency and reducing noise emissions. In this study, a new transitional improved delayed detached-eddy simulation (IDDES) method, referred to as Tr-IDDES, is developed by coupling the γ-Reθt-k-ωSST transitional Reynolds-averaged Navier-Stokes (RANS) model into the IDDES framework. The Tr-IDDES method is applied to study the flow over the DU97FlatBack airfoil and is compared against the traditional fully turbulent IDDES (Ft-IDDES) method. The results demonstrate that the Tr-IDDES method successfully captures key transitional flow features such as laminar separation bubbles (LSBs) and boundary layer transition, which are not resolved by the Ft-IDDES model. It also demonstrates improved accuracy in predicting aerodynamic forces and better agreement with experimental results. Furthermore, the aeroacoustic behavior of the DU97FlatBack airfoil is studied using the IDDES methods and the Ffowcs-Williams and Hawkings equation for far-field noise prediction; the Tr-IDDES model more accurately predicts peak sound pressure levels and the spectral distribution of self-noise. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Fluids Engineering is the property of American Society of Mechanical 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: 192340082 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Aerodynamic and Aeroacoustic Simulations of a Wind Turbine Airfoil Employing a New Transitional IDDES Method. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ghimire%2C+Sandip%22">Ghimire, Sandip</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ni%2C+Xiang%22">Ni, Xiang</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Yue%22">Wang, Yue</searchLink><relatesTo>1,2</relatesTo><i> yuewang@nwpu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Ma%2C+Yiyuan%22">Ma, Yiyuan</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zafar%2C+Fahad+Ullah%22">Zafar, Fahad Ullah</searchLink><relatesTo>1,2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Fluids+Engineering%22">Journal of Fluids Engineering</searchLink>. Apr2026, Vol. 148 Issue 4, p1-13. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Wind+turbine+aerodynamics%22">Wind turbine aerodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Transition+flow%22">Transition flow</searchLink><br /><searchLink fieldCode="DE" term="%22Boundary+layer+%28Aerodynamics%29%22">Boundary layer (Aerodynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Aeroacoustics%22">Aeroacoustics</searchLink><br /><searchLink fieldCode="DE" term="%22Aerodynamics%22">Aerodynamics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The aerodynamic and aeroacoustic performance of wind turbines is strongly influenced by boundary layer transition, especially over thick trailing-edge airfoils commonly used near the blade root. Accurate prediction of transitional flow behavior is therefore critical for optimizing wind turbine efficiency and reducing noise emissions. In this study, a new transitional improved delayed detached-eddy simulation (IDDES) method, referred to as Tr-IDDES, is developed by coupling the γ-Reθt-k-ωSST transitional Reynolds-averaged Navier-Stokes (RANS) model into the IDDES framework. The Tr-IDDES method is applied to study the flow over the DU97FlatBack airfoil and is compared against the traditional fully turbulent IDDES (Ft-IDDES) method. The results demonstrate that the Tr-IDDES method successfully captures key transitional flow features such as laminar separation bubbles (LSBs) and boundary layer transition, which are not resolved by the Ft-IDDES model. It also demonstrates improved accuracy in predicting aerodynamic forces and better agreement with experimental results. Furthermore, the aeroacoustic behavior of the DU97FlatBack airfoil is studied using the IDDES methods and the Ffowcs-Williams and Hawkings equation for far-field noise prediction; the Tr-IDDES model more accurately predicts peak sound pressure levels and the spectral distribution of self-noise. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Fluids Engineering is the property of American Society of Mechanical 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=192340082 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1115/1.4070690 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 1 Subjects: – SubjectFull: Wind turbine aerodynamics Type: general – SubjectFull: Transition flow Type: general – SubjectFull: Boundary layer (Aerodynamics) Type: general – SubjectFull: Computational fluid dynamics Type: general – SubjectFull: Aeroacoustics Type: general – SubjectFull: Aerodynamics Type: general Titles: – TitleFull: Aerodynamic and Aeroacoustic Simulations of a Wind Turbine Airfoil Employing a New Transitional IDDES Method. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ghimire, Sandip – PersonEntity: Name: NameFull: Ni, Xiang – PersonEntity: Name: NameFull: Wang, Yue – PersonEntity: Name: NameFull: Ma, Yiyuan – PersonEntity: Name: NameFull: Zafar, Fahad Ullah IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00982202 Numbering: – Type: volume Value: 148 – Type: issue Value: 4 Titles: – TitleFull: Journal of Fluids Engineering Type: main |
| ResultId | 1 |
