Reviewing Parameters Performance Of Savonius-Type Hydrokinetic Turbines And Mathematical Modeling

The global emphasis on rapid development underscores the importance of harnessing renewable energy sources. Among these, hydropower primarily through hydrokinetic turbines. Savonius turbines, known for their effective characteristics in generating hydrokinetic energy, are particularly efficient in environments with weak or low-speed water flows. Various strategies have been implemented to optimize the overall efficiency and performance of these turbines. This study reviews the optimization efforts aimed at maximizing the parameters influencing turbine performance. Key factors include the Tip Speed Ratio, installation techniques, aspect ratio, gap and overlap ratios, end plates, blade shape, number of blades, rotor angle, multi-staging, and Reynolds number. Additionally, this research analyzes trends using bibliometric methods from 2012 to 2024, focusing on the keyword "hydrokinetic Savonius turbine." The analysis covers research trends, document types, publication volume, and citation metrics by country. Emerging keywords include Savonius hydrokinetic turbines, renewable energy, tip speed ratio, and coefficient of performance. A critical aspect of this review is the examination of case studies involving mathematical models of Savonius turbines, both analytical and numerical. Ultimately, this review article aims to provide readers with a comprehensive understanding of what is required for the future design and development of Savonius hydrokinetic technology.