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http://hdl.handle.net/10397/81356
| 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 (http://creativecommons.org/licenses/by/4.0/). 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 https://dx.doi.org/10.3390/en12132573 |
| Appears in Collections: | Journal/Magazine Article |
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|---|---|---|---|---|
| Lin_Structural_Large-Scale_Vertical-Axis.pdf | 8.31 MB | Adobe PDF | View/Open |
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