Wind tunnel experimental investigation of wake characteristics and turbulent mixing in tandem-arranged wind turbines

This study presents a comprehensive wind tunnel investigation into the wake characteristics and turbulent mixing processes in tandem-arranged wind turbines, with a particular focus on the interaction between turbines of different sizes. By employing advanced measurement techniques and detailed flow analysis, the research explores how varying streamwise spacing and rotor configurations influence wake recovery and turbulence transport mechanisms. The findings reveal that smaller downstream turbines significantly alter the wake structure of upstream turbines, enhancing wake recovery through accelerated mixing of large-scale vortices. The research also quantifies the impact of these interactions on velocity distribution, power spectral density, and turbulence integral scales, offering new perspectives on optimizing wind farm layouts for improved energy efficiency. These results contribute to the broader understanding of wake dynamics in wind farms, paving the way for more effective design strategies in renewable energy deployment.