Numerical Investigation of Aerodynamic Performance and Structural Analysis of a 3D J-Shaped Based Small-Scale Vertical Axis Wind Turbine

Oriol Bel Laveda, Marie-Alix Roche, Mohit Phadtare, Louise Sauge, Keerthana Jonnafer Xavier, Grishma Bhat, Divya Saxena, Jagmeet Singh Saini and Patrick G. Verdin ()
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Oriol Bel Laveda: Energy & Sustainability, Cranfield University, Cranfield MK43 0AL, UK
Marie-Alix Roche: Energy & Sustainability, Cranfield University, Cranfield MK43 0AL, UK
Mohit Phadtare: Energy & Sustainability, Cranfield University, Cranfield MK43 0AL, UK
Louise Sauge: Energy & Sustainability, Cranfield University, Cranfield MK43 0AL, UK
Keerthana Jonnafer Xavier: Energy & Sustainability, Cranfield University, Cranfield MK43 0AL, UK
Grishma Bhat: Energy & Sustainability, Cranfield University, Cranfield MK43 0AL, UK
Divya Saxena: Energy & Sustainability, Cranfield University, Cranfield MK43 0AL, UK
Jagmeet Singh Saini: Energy & Sustainability, Cranfield University, Cranfield MK43 0AL, UK
Patrick G. Verdin: Energy & Sustainability, Cranfield University, Cranfield MK43 0AL, UK

Energies, 2023, vol. 16, issue 20, 1-18

Abstract: Small vertical axis wind turbines (VAWTs) are often considered suitable for use in urban areas due to their compact design. However, they are also well known to offer poor performance at low wind speeds, which is a common situation in such environments. An optimised 3D J-shaped VAWT was designed from standard NACA 0015 blades and analysed numerically through computational fluid dynamics (CFD). A finite element analysis (FEA) was also carried out to ensure the model’s structural integrity. Optimal results were obtained with aluminium alloy hollow blades and stainless-steel struts with X-shaped beams, with internal ribs. Numerical results showed that the J-shaped VAWT achieved an 18.34% higher moment coefficient compared to a NACA 0015-based VAWT, indicating better self-starting abilities.

Keywords: 3D vertical axis wind turbine; J-shape; NACA 0015; starting torque; finite element analysis; computational fluid dynamics (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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