Perpustakaan Digital ITB

This thesis investigates the hydrodynamic performance of a three-blade Darrieus-type tidal turbine through a 3-dimensional numerical analysis. Using Computational Fluid Dynamics (CFD) modeling via ANSYS software, the study focuses on evaluating key design parameters that influence turbine efficiency, including Blockage Ratio and blade curvature. Specifically, the research compares the performance different blockage condition with curved blade design. Theoretical validation is conducted using the Garrett and Cummins theory, allowing for a comprehensive understanding of power and thrust coefficient behavior. Indonesia’s vast tidal resources present a significant opportunity to expand renewable energy generation, and optimizing tidal turbine performance is crucial to harnessing this potential. This study aims to contribute to the development of more efficient hydrokinetic turbines by identifying optimal design features that improve energy capture while minimizing flow resistance. The outcomes of this research are expected to support future turbine design improvements and offer valuable insights for deployment in constrained environments such as narrow channels, ultimately contributing to the national energy transition goals.