Research on hydrodynamic performance of S-type turbine based on linear wave

The hydrodynamic performance of a Savonius type turbine (S-type turbine) in wave field is studied. The method of combining numerical simulation with physical experiment is adopted.Based on linear wave theory and turbulence model, Star CCM+numerical simulation software is used for digital modeling, a...

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Bibliographic Details
Published in:PloS one 2025-01, Vol.20 (1), p.e0310478
Main Authors: Bao, LingJie, Wang, Ying, Chen, JunHua, Li, Hao, Jiang, ChuHua, Zhuo, Yue, Wu, Siru
Format: Article
Language:English
Subjects:
Analysis
Boundary conditions
Computer Simulation
Efficiency
Energy
Evaluation
Flow velocity
Fluid dynamics
Fluid flow
Force and energy
Hydrodynamics
Hydrofoil boats
Mathematical models
Models, Theoretical
Numerical analysis
Numerical simulations
Physical tests
Rotating bodies
Simulation
Simulation methods
Software
Testing equipment
Turbines
Turbulence
Turbulence models
Water
Wave energy
Wave height
Wave power
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Summary:The hydrodynamic performance of a Savonius type turbine (S-type turbine) in wave field is studied. The method of combining numerical simulation with physical experiment is adopted.Based on linear wave theory and turbulence model, Star CCM+numerical simulation software is used for digital modeling, and overlapping grid technology is used for grid modeling. Dynamic Fluid Body Interaction (DFBI) model is called to control the movement of S-type turbine, and second-order time discretization is adopted to establish a two-dimensional wave field model and conduct numerical simulation. At the same time, the physical test system of S-type turbine was developed for physical experiment verification, and the rotating performance of S-type turbine under different wave heights and pe-riods was measured, and the results of numerical simulation and physical experiment were com-prehensively evaluated. The results show that in wave field, the inverted S-shape arrangement of horizontal axis is better than the positive S-shape arrangement of horizontal axis and the vertical axis arrangement, and the captured energy is more than 3 times. At the same time, the fluctuating rotation speed of S-type turbine in wave field needs to be close to the wave frequency to capture more wave energy, which has guiding significance for practical engineering.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0310478