Physical Modelling of Tidal Stream Turbine Wake Structures under Yaw Conditions

Tidal stream turbines may operate under yawed conditions due to variability in ocean current directions. Insight into the wake structure of can be essential ensure efficient tidal energy extraction, especially for turbine arrays where interactions emerge. We studied experimentally effects operating varying yaw conditions. Two scenarios, including a single and set two alignment, were configured compared. The thrust force results confirmed that an increasing angle decrease streamwise increase spanwise force. velocity distribution from scenario showed deflection deficit recovery rate increased at proportional angle. two-turbine indicated deployment upstream non-yawed significantly limited downstream steering (i.e., area behind turbine). Interestingly, was seen influence both wakes. These systematically derived data could regarded as useful references numerical modelling optimisation large arrays.