Elevating Wind Energy Harvesting with J-shaped Blades: A CFD- driven Analysis of H-Darrieus Vertical Axis Wind Turbines
Abstract
This research introduces a novel J-shaped aerofoil designed to enhance the performance of H-Darrieus Vertical Axis Wind Turbines (VAWTs). A comprehensive comparison is conducted between the J-shaped aerofoil and the standard NACA 0015 airfoil to assess their impact on turbine efficiency. The study employs a two-dimensional, incompressible, transient, and turbulent flow model to capture airflow around the turbine blades. Model verification and validation are carried out through systematic evaluation of various parameters, including mesh sizes, time steps, turbulent models, and discretization techniques.
Computational Fluid Dynamics (CFD) simulations give useful insights into the aerodynamic features of H- Darrieus VAWT blades, indicating greater performance of the J-shaped airfoil over conventional designs. Results suggest that blades with the J-shaped aerofoil demonstrate increased overall performance and, notably, a 142% increase in beginning torque compared to the normal NACA 0015 type. This research not only contributes a new and efficient aerofoil design for vertical axis wind turbines but also offers full knowledge of its aerodynamic benefits via rigorous simulation and analysis.
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DOI: https://dx.doi.org/10.21622/MARLOG.2024.13.1.108
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The International Maritime Transport and Logistics Journal (MARLOG)
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