Experimental and numerical investigations of hydrodynamic performance for horizontal-axis hydrokinetic turbines

Basit Öğe Kaydı
dc.contributor.authorKale, Fatih Mehmet
dc.contributor.authorYilmaz, Naz
dc.contributor.authorSokmen, Kemal Furkan
dc.contributor.authorShi, Weichao
dc.date.accessioned2026-02-08T15:15:52Z
dc.date.available2026-02-08T15:15:52Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractThis paper presents both experimental and numerical investigations of the hydrodynamic performance of Horizontal-axis Hydrokinetic Turbines (HAHTs) using experimental methods and Computational Fluid Dynamics (CFD) approaches, respectively. The innovative aspect of this study lies in the consistency of the results, achieved by aligning the method used in the CFD analyses for Hydrokinetic Turbines (HKTs) and airfoil profiles with experimental data. For this purpose, 2-D CFD analyses were first conducted with blade section geometries (Eppler 395 and S1210), which are commonly used in HKT designs. The aerodynamic characteristics (CL and CL/CD) of these blade sections were computed and compared with the experiments. Subsequently, a three-dimensional (3-D) turbine geometry, featuring three different pitch angles (PAs), was simulated using CFD, and the results were compared with experimental data obtained under the same operating conditions in the Emerson Cavitation Tunnel (ECT) at Newcastle University. The comparisons showed good agreement while the maximum relative error was calculated less than 10 % for the power coefficient (CP) of the turbine with a PA of 0 degrees. For the other PA (8 degrees), the maximum relative error was 11 % for CP and 14 % for the thrust coefficient (CT). The CFD investigations of HKTs revealed that the Detached Eddy Simulation (DES) model has less relative errors compared to the other turbulence models at the same Tip Speed Ratio (TSR) values, while the Sliding Mesh (SM) method describing rotation gives more consistent and closer results to the experiments, with the investigation of y+ point of view.
dc.identifier.doi10.21278/brod76308
dc.identifier.issn0007-215X
dc.identifier.issn1845-5859
dc.identifier.issue3
dc.identifier.scopus2-s2.0-105008980860
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.21278/brod76308
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5995
dc.identifier.volume76
dc.identifier.wosWOS:001514332800005
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherUniv Zagreb Fac Mechanical Engineering & Naval Architecture
dc.relation.ispartofBrodogradnja
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectHydrodynamic performance
dc.subjectExperimental investigation
dc.subjectHorizontal-axis hydrokinetic turbines (HAHT)
dc.subjectComputational fluid dynamics (CFD)
dc.subjectPower coefficient (CP)
dc.subjectThrust coefficient (CT)
dc.titleExperimental and numerical investigations of hydrodynamic performance for horizontal-axis hydrokinetic turbines
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu