September 10, 2025Open Access

Dynamic Stall and Virtual Camber on High-Solidity Vertical Axis Wind Turbines

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The 2-bladed turbine achieved 32% higher peak torque than the 3-bladed variant, indicating significant performance variations.
Increased blade pitch rates led to delayed dynamic stall in the 2-bladed turbine, enhancing its efficiency.
The optimal strut-blade connection point at 50% chord minimized drag and lateral forces while maintaining consistent torque generation.
Virtual camber was confirmed through comparative analysis of measured and computed pressure coefficients, highlighting its design importance.

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Experimental analysis reveals dynamic stall impacts torque and power in vertical axis wind turbines, suggesting design optimizations.

Greenblatt et al. (2025) studied this question.

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