The Effect of Leading-Edge Wavy Shape on the Performance of Small-Scale HAWT Rotors

Basit Öğe Kaydı
dc.authoridMORINA, Riad/0000-0001-6997-117X
dc.contributor.authorMorina, Riad
dc.contributor.authorAkansu, Yahya Erkan
dc.date.accessioned2024-11-07T13:25:17Z
dc.date.available2024-11-07T13:25:17Z
dc.date.issued2023
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe purpose of this experimental work was to investigate the role of the leading-edge wavy shape technique on the performance of small-scale HAWT fixed-pitch rotor blades operating under off-design conditions. Geometric parameters such as amplitude and wavelength were considered design variables to generate five different wavy shape blade models in order to increase the aerodynamic performance of the rotor with a diameter of 280 mm. A dedicated airfoil type S822 for small wind turbine application from the NREL Airfoil Family was chosen to fulfil both the aerodynamic and structural aspects of the blades. Rotor models were tested in a wind tunnel for different wind speeds while maintaining constant rotational speed to provide the blade-tip chord Reynolds number of 4.7 x 104. The corrected tunnel data, in terms of power coefficients and tip-speed ratios, were compared first with the literature to validate the experimental approach, and then among themselves. It was observed that for minimal sizes of tubercles, the performance of the rotor increases by about 40% compared to the RB1 baseline rotor model for a low tip-speed ratio. Conversely, for the maximum size of the tubercles, there is a marked decrease of about 51% of the rotor performance for a moderate tip-speed ratio compared to the RB1 rotor model. Among these models, specifically, the RB2 rotor model with the smallest values of amplitude and wavelength provides a 2.8% higher peak power coefficient compared to the RB1 rotor model, and at the same time preserves higher performance values for a broad range of tip-speed ratios.
dc.identifier.doi10.3390/en16176405
dc.identifier.issn1996-1073
dc.identifier.issue17
dc.identifier.scopus2-s2.0-85170547295
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3390/en16176405
dc.identifier.urihttps://hdl.handle.net/11480/14623
dc.identifier.volume16
dc.identifier.wosWOS:001061039700001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofEnergies
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectsmall HAWT rotor
dc.subjectblade design
dc.subjectpower coefficient
dc.subjectpassive flow control
dc.subjectbio-inspired technique
dc.subjectleading-edge tubercles
dc.subjectlow Reynolds number
dc.subjectfixed-pitch rotor
dc.subjectwind tunnel
dc.titleThe Effect of Leading-Edge Wavy Shape on the Performance of Small-Scale HAWT Rotors
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu