Research on Wake Field Characteristics and Support Structure Interference of Horizontal Axis Tidal Stream Turbine

The harnessing and utilization of tidal current energy have emerged as prominent topics in scientific inquiry, due to their vast untapped resource potential, leading numerous investigations into the efficacy hydrokinetic turbines under various operational conditions. This paper delineates wake field characteristics performance horizontal axis stream influence support structures, using a comprehensively blade-resolved computational fluid dynamics (CFDs) model that employs Reynolds-averaged Navier–Stokes (RANS) equations combination with RNG k-ε turbulence model. To achieve this, study utilized experimental tank tests numerical simulations investigate distribution recuperative principles turbine’s field. velocity augmentation coefficient showed strong agreement results. further assess effect structures on flow downstream unit its performance, hydrodynamic attributes turbine were analyzed without structures. interference elicited by structure modified near-wake field, resulting 4.41% decrease power (Cp), significantly impacting instantaneous performance.