Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Department: search.filters.department.İzmir Institute of TechnologySubject: search.filters.subject.Ansys Fluent

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  • Article
    Citation - WoS: 1
    Citation - Scopus: 1
    Enhancement of Savonius Wind Turbine Performance Through Blade Optimization
    (Isfahan Univ Technology, 2025) Hazar, O.; Dirgenali, M.; Kacar, K.; Elci, S.
    The objective of this study is to create an innovative blade design that enhances the power efficiency of the Savonius rotors. This is achieved by optimizing the blade shape of the traditional Savonius rotor using the ANSYS Adjoint solver program. The results of the analysis revealed that the total pressure exerted on the optimized shape was 16 times greater than that of the traditional Savonius rotor. To compare performance metrics, the rotor with the optimized blade structure was numerically modeled alongside the traditional and Banesh-type Savonius rotors using the ANSYS Fluent program. The Dynamic Mesh 6DOF method is used in the model domain in order to simulate rotation of the rotor. The rotors were then analyzed in two different configurations: as a single-stage rotor with a phase angle of 0o, and as a three-stage rotor with a phase angle of 60o between each stage while keeping rotor height constant. The optimized blade rotor with 3 stages demonstrated superior performance with a power coefficient of 0.44, outperforming both the Banesh and traditional Savonius rotors, while also displaying power coefficient values 18.9% and 37.5% higher than the Banesh-type Savonius and traditional Savonius rotors, respectively.
  • Article
    New Rotating Coanda-Type Intake for Sediment-Laden Flows
    (Canadian Science Publishing, 2025) Hazar, O.; Civelek, S.; Sagir, C.A.; Elçi, S.
    Tyrolean and Coanda types of water intake structures are the most widely preferred bottom intake structures used to divert water from channels and river systems for various purposes, such as energy production, irrigation, and domestic use. Estimation of withdrawal water and filtered sediment amounts is important to obtain maximum efficiency from an intake structure. The purpose of this study is to numerically analyze a newly patented rotating Coanda-type intake system to achieve the highest water capturing efficiency and sediment release efficiency. The newly patented system (patent No.: TR2021011306B) presented here incorporates Coanda screens with variable void ratios, autonomously selected based on the sediment characteristics of the inflowing water. The process of selecting and positioning the appropriate screen is fully automated, requiring no human intervention. The system rotates under motor control to place the suitable screen at the operational point based on the specific requirements of the incoming sediment-laden flow. © 2025 The Author(s).