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Title: Structural analysis of large-scale vertical-axis wind turbines, part I : wind load simulation
Authors: Lin, JH 
Xu, YL 
Xia, Y 
Li, C
Issue Date: 2019
Source: Energies, 1 July 2019, v. 12, no. 13, 2573, p. 1-31
Abstract: When compared with horizontal-axis wind turbines, vertical-axis wind turbines (VAWTs) have the primary advantages of insensitivity to wind direction and turbulent wind, simple structural configuration, less fatigue loading, and easy maintenance. In recent years, large-scale VAWTs have attracted considerable attention. Wind loads on a VAWT must be determined prior to structural analyses. However, traditional blade element momentum theory cannot consider the effects of turbulence and other structural components. Moreover, a large VAWT cannot simply be regarded as a planar structure, and 3D computational fluid dynamics (CFD) simulation is computationally prohibitive. In this regard, a practical wind load simulation method for VAWTs based on the strip analysis method and 2D shear stress transport (SST) k-omega model is proposed. A comparison shows that the wind pressure and aerodynamic forces simulated by the 2D SST k-omega model match well with those obtained by 2.5D large eddy simulation (LES). The influences of mean wind speed profile, turbulence, and interaction of all structural components are considered. A large straight-bladed VAWT is taken as a case study. Wind loads obtained in this study will be applied to the fatigue and ultimate strength analyses of the VAWT in the companion paper.
Keywords: Vertical-axis wind turbines
Wind load simulation
Strip analysis
CFD simulation
Turbulent wind
Publisher: Molecular Diversity Preservation International (MDPI)
Journal: Energies 
EISSN: 1996-1073
DOI: 10.3390/en12132573
Rights: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
The following publication Lin, J.; Xu, Y.-L.; Xia, Y.; Li, C. Structural Analysis of Large-Scale Vertical-Axis Wind Turbines, Part I: Wind Load Simulation. Energies 2019, 12, 2573, 1-31 is available at
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