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Design Optimization of Vortex-Induced Vibration Bladeless Wind Turbines for Urban Energy Harvesting
Abstract
Urban environments require innovative solutions for clean energy generation, as conventional wind turbines are often limited by space and noise constraints. Vortex-Induced Vibration (VIV) bladeless wind turbines present a promising alternative by converting oscillatory motion into electricity without rotating blades. This study investigates the influence of mast height, upper diameter, and lower diameter on turbine flexibility and performance under the low wind speeds typical of urban settings. Computational fluid dynamics and static structural analysis in ANSYS, combined with Response Surface Methodology (RSM) and Central Composite Design (CCD), were used to develop an optimization model aimed at maximizing mast deflection—a critical factor in energy harvesting efficiency. Results reveal that mast height and upper diameter significantly influence deformation, while lower diameter has a relatively minor impact. The optimal configuration achieved a mast deflection of 9.15 mm, validating the model’s predictive accuracy. These findings provide practical design insights for enhancing bladeless wind turbine performance in urban settings, paving the way for more sustainable and space-efficient renewable energy solutions.
Citation: Kwong, L., & Han, D. (2025). Design Optimization of Vortex-Induced Vibration Bladeless Wind Turbines for Urban Energy Harvesting. Trends in Renewable Energy, 11(2), 255-279. doi:http://dx.doi.org/10.17737/tre.2025.11.2.00194
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DOI: http://dx.doi.org/10.17737/tre.2025.11.2.00194
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