CFD Simulation of Savonius Cross-flow Hydrokinetic Turbine Using Various URANS Turbulence Models

The utilization of hydrokinetic turbine technology is an innovative and sustainable method of generating electricity through the power of flowing water. The distinct advantage of this technology over traditional hydropower plants is its ability to operate without the need for the construction of dams or large water reservoirs, which can pose significant risks to local ecosystems and communities. Instead, hydrokinetic turbines can be directly installed in waterways, allowing for a more efficient and eco-friendly use of natural resources. This technology can provide clean, reliable electricity to millions of people globally, while also reducing greenhouse gas emissions and mitigating the effects of climate change. The present study presents two-dimensional computational fluid dynamics simulation of a cross-flow hydrokinetic turbine model. The simulation is performed by various Unsteady Reynolds-Averaged-NavierStokes models and then the results are compared to previous experimental and mathematical models. The flow field patterns and performance parameters of different models are presented and compared to compare the validity of different turbulence models available.