Effects of Damaged Rotor on Wake Dynamics of Vertical Axis Wind Turbines

Vertical Axis Wind Turbines (VAWTs) are omnidirectional turbomachines commonly used in rural areas for small-to-medium-scale power generation. The complex flow observed the wake region of VAWTs is affected by a number factors, such as rotor blades design. A damaged significantly alters field VAWT, degrading its generation capability. Published literature on wind turbine severely limited to torque signal analysis and basic description region. In this study, detailed numerical investigations have been carried out establish quantify relationship between dynamics VAWT. Time-based Computational Fluid Dynamics analyses performed two VAWT models, one undamaged other with missing blade. Proper Orthogonal Decomposition has extract energy content temporal coefficients various patterns associated results indicate that first pressure-based mode contains 99% provides functional basis accurate reconstruction wake. It envisaged study will aid development novel machine learning algorithms damage detection farms.