The Comparative Performance Analysis of Naca 6409 9% and Naca 0012 Airfoils on Savonius Hydrokinetic Turbine Based on Computational Fluid Dynamics
Computational Fluid Dynamics to Hydropower
Abstract
This study investigates the potential of river water energy in Magelang District as an alternative source of electricity. The research method includes measuring the river’s width, depth, and flow velocity, followed by calculating the discharge. Computational Fluid Dynamics (CFD) simulations were used to evaluate the performance of a Savonius turbine with NACA 6409 9% and NACA 0012 blades. The novelty of this research lies in optimizing Savonius turbine efficiency by assessing the influence of different blade geometries on turbine performance in river applications. Simulation results show that blade geometry significantly affects water flow dynamics, causing velocity spikes at the blade tips and varying pressure distributions between the two profiles. Furthermore, the study highlights substantial turbulence downstream of the turbine. These findings provide critical insights for enhancing Savonius turbine design, improving river water energy utilization, and offering practical solutions for renewable power generation in Magelang District
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