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June 19, 2026EnergiesOpen Access

Improvement of the Aerodynamic Performance of a Darrieus Vertical-Axis Wind Turbine Using a Passive Deflector in Urban Environments

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Authors

BSBeatriz Salvador-GutierrezLSLozano Sanchez-CortezLDLincold Dante-Salvatierra

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Overview

Randomized trial evaluates improved wind energy capture in urban settings, suggesting enhanced performance.

Key Points

  • This study aims to enhance the aerodynamic performance of vertical-axis wind turbines in urban settings using a passive deflector.
  • Evaluated a straight-bladed H-Darrieus rotor with a passive deflector through CFD modeling.
  • Used the SST k–ω turbulence model for simulations under identical operational conditions.
  • Conducted geometric sensitivity assessments for deflector positioning and dimensions.
  • Maximum power coefficient improved from 0.4459 to 0.6153 with the deflector at TSR = 2.5, achieving approximately 38% enhancement.
  • Deflector accelerates airflow towards the advancing blade while reducing adverse torque on the returning blade.
  • Results indicate the deflector's applicability in low-to-moderate urban wind regimes.

Cite This Study

Salvador-Gutierrez et al. (2026) studied this question.

synapsesocial.com/papers/6a34de1265a5b0777af2d97bhttps://doi.org/10.3390/en19122875
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