This article proposed a numerically efficient framework in the failure mode identification and evaluation of a wind turbine tower under cyclones (hurricanes/
1 1 2 Wind turbine tower collapse due to flange failure: FEM 3 and DOE analyses 4 Mar Alonso-Martinez a*, José M. 18 In order to study the influence of different variables on the flange's structural response, a method based 19 on the Design of Experiments (DOE) was used on the FEM model. The causes of the failure were determined by: visual inspection, 69 laboratory tests, a Finite Element Method (FEM) simulation of the zone in which the failure occurred, 70 and a Design of Experiments (DOE) to assess the influence of the different parameters involved in the 3 71 risk of structural collapse. 548 Highlights: • Wind tower collapse due to the failure of a flange is analyzed • Analysis of the material properties is needed to identify the causes of the failure • Finite Element model shows the load distribution in the broken section • The most influential parameters are obtained applying Design of Experiments (DOE) 1 1 2 Wind turbine tower collapse due to flange failure: FEM 3 and DOE analyses 4 Mar Alonso-Martinez a*, José M.
This paper studies the structural responses and failure modes of a 1.5-MW horizontal-axis wind turbine under strong ground motions and wind loading.
# A comprehensive review of numerical simulation techniques for wind turbines: from computational fluid dynamics and finite element analysis to advanced turbulence modeling. This review critically examines state-of-the-art numerical methodologies for the simulation of wind turbines, offering a rigorous exploration of their theoretical foundations, practical implementations, and comparative performance. The core of the study delves into advanced computational techniques encompassing computational fluid dynamics (CFD), finite element analysis (FEA), and fully coupled CFD-FEA frameworks used to resolve aerodynamic, structural, and fluid–structure interaction phenomena with high fidelity. The paper systematically analyzes turbulence modeling strategies, from industry-standard Reynolds-averaged Navier–Stokes (RANS) models to high-resolution large eddy simulation (LES) and hybrid detached eddy simulation (DES) approaches, evaluating their capabilities in capturing unsteady flow structures, vortex dynamics, and wake interactions. Through a comparative synthesis of these methods, the paper provides deep insights into their trade-offs in terms of computational cost, physical realism, and practical applicability, ultimately guiding the selection and optimization of simulation strategies for advanced wind energy system design and performance evaluation. ### A comparative study of RANS-based turbulence models for an upscale wind turbine blade.
Abbreviations and Nomenclature ABL Atmospheric boundary layer ADM Actuator disk model ALM Actuator line model ASM Actuator surface model BEM Blade Element Momentum CFD Computational fluid dynamics DNS Direct numerical simulation LES Large eddy simulation N-S Navier-Stokes equations RANS Reynolds-averaged Navier-Stokes SGS Subgrid-scale CD Drag coefficient CL Lift coefficient CP Power coefficient CT Thrust coefficient p Pressure t Time U Velocity U∞ Free stream velocity λ Tip speed ratio νSGS Subgrid-scale viscosity ρ Density σ Solidity factor τSGS Subgrid-scale stress iv This report is available at no cost from the National Renewable Energy Laboratory at www.nrel.gov/publications. 2 Actuator Turbine Model Implementation The actuator disk model (ADM) and actuator line model (ALM) predict blade forces depending on the local fluid velocity at each actuator element. 6 Conclusion and Future Work The actuator line model (ALM) and actuator disk model (ADM) are a suitable representation of a wind turbine when using numerical simulations of fluid flows.
Abstract—Failure Mode and Effect Analysis (FMEA) has already been used as a qualitative measure for identifying failure modes and causes, in order to
This paper studies the structural responses and failure modes of a 1.5-MW horizontal-axis wind turbine under strong ground motions and wind loading. Ground
Computational. Fluid Dynamics (CFD) simulation was followed to capture wind characteristics of the concerned wind farm terrain under typhoon impact. Meanwhile,