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All Journal Journal of Energy, Mechanical, Material and Manufacturing Engineering
Aditya Sukma Nugraha
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Mechanical Engineering

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Optimization of staggered array configurations to enhance the aerodynamic performance of Darrieus wind turbines Yosua Heru Irawan; Aditya Sukma Nugraha; Po Ting Lin
Journal of Energy, Mechanical, Material, and Manufacturing Engineering Vol. 9 No. 1 (2024)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v9i1.33352

Abstract

This research focuses on optimizing the arrangement of Darrieus wind turbines through an adjustable R array, which represents the spacing between the turbine rotors. The ANSYS Fluent solver, employing the k-epsilon turbulent model and sliding mesh technique, is utilized to predict turbine performance. Additionally, a grid independence test is conducted to validate the solver's effectiveness. The optimization of the R array is achieved using the conjugate gradient method. Simulation results indicate that a blade grid size of 1 mm results in an error under 1%. A smaller R array yields a lower average coefficient of power (Cpaverage) due to the wake interactions between the rotors. The optimal spacing for each turbine to achieve a Cpaverage value of 0.4088 is determined to be 1.772 meters.
Co-Authors Po Ting Lin Yosua Heru Irawan