2024年7月1日 · Employing actual tidal flow velocity and wave data as input, this study specifically examines how variations in wave period and height affect turbine performance. The analysis reveals a nuanced decrease in time-averaged performance …

2024年1月15日 · This paper considers hub-depth impacts on mechanical loads for a tidal turbine operating in realistic coupled wave–current sea states. A novel medium-fidelity actuator-line CFD model for simulating tidal turbine non-steady hydrodynamic rotor load responses in the presence of turbulence, shear, and surface waves is developed.

2024年5月24日 · Tidal turbines are similar to wind turbines because they both have blades that turn a rotor to power a generator. They can be placed on the sea floor where the tidal flow is strong. Because water is about 800 times denser than air, tidal turbines have to be much sturdier and heavier than wind turbines.

Tidal power or tidal energy is harnessed by converting energy from tides into useful forms of power, mainly electricity using various methods. Although not yet widely used, tidal energy has the potential for future electricity generation .

2018年5月15日 · When tidal turbines are utilized in the most energetic waters where there are significant waves, the assessment of the surface wave effects are of great concerns. The objective of this paper is to contribute to a fundamental understanding of surface …

2024年9月20日 · Here we use aerial drones and acoustic profiling transects to quantify the site- and scale-dependent complexities of actual turbulent flows around an idled, utility-scale floating tidal turbine...

2025年1月10日 · The misalignment between flow and rotor can significantly alter the efficiency of the tidal stream turbine (TST), and therefore, it is vital to predict the flow in the tidal field and the performance of the TST under yaw-offset conditions.

2022年8月5日 · Tidal current technologies – or tidal stream technologies – make use of the kinetic energy of moving water to power turbines, similar to how wind turbines are moved by air. Due to its relatively low cost and limited ecological impact, this method has become more prevalent compared to tidal range technologies.

2023年5月2日 · Tidal-stream turbines are underwater machines that transform the kinetic energy of streams into renewable electricity. However, the technology is still in its infancy and faces many challenges in terms of biofouling, environmental impacts, cost, unpredictability, and efficiency.

2023年2月15日 · OpenFOAM, an open-source computational fluid dynamics (CFD) library platform, was used to predict the performance of a horizontal axis tidal stream turbine (HATST) under waves and currents. A mesh dependency test was carried out to select the optimal mesh to capture the flow’s features.