Improving vertical-axis turbine efficiency with chordwise actively deforming blades

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Greater efficiency improvements were observed at low tip-speed ratios, indicating specific operational advantages.
The approach involved two-dimensional unsteady Reynolds-averaged Navier–Stokes simulations of a Darrieus turbine.
Active deformation patterns were assessed, revealing their significant impact on turbine performance metrics.
Findings suggest that employing deforming airfoils can enhance turbine design and energy conversion efficiency.

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Simulations show 3.55% efficiency improvement in vertical-axis turbines with deforming airfoils, highlighting design potential.

Mathieu Olivier (2025) studied this question.

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