8 results · ● Live web index
mdpi.com article

Dynamic Response Analysis of Wind Turbine Structure to Turbulent Wind Load: Comparative Assessment in Time and Frequency Domains

https://www.mdpi.com/2673-3161/4/3/43

The aim is to provide a snapshot of some of the most exciting work published in the various research areas of the journal. Simulations and experiments are utilized to evaluate the dynamic response of a wind turbine structure to turbulent wind loads, with the aim of validating the results based on real wind farm conditions. Two approaches are employed to analyze the dynamic responses: the frequency domain modal analysis approach, which incorporates von Kármán spectra to represent the turbulent wind loads, and the time domain Monte Carlo simulation and Newmark methods, which generate wind loads and determine dynamic responses, respectively. Therefore, the accurate analysis of wind turbine structural dynamics can be achieved using simulations in both the time and frequency domains, considering the importance of the number of samples when choosing between time domain and frequency domain analyses. The analysis of the dynamic response of wind turbine structures requires the use of computational methods in both the time and frequency domains, incorporating stochastic analysis.

Visit
verso.uidaho.edu research

[PDF] Dynamic overset CFD simulations of wind turbine aerodynamics

https://verso.uidaho.edu/view/pdfCoverPage?instCode=01ALLIANCE_UID&filePid=13…

Dynamic overset CFD simulations of wind turbine aerodynamics Yuwei Li a,1, Kwang-Jun Paik a,2, Tao Xing b,3, Pablo M. Maxwell Stanley Hydraulics Laboratory, The University of Iowa, Iowa City, IA 52242, USA a r t i c l e i n f o Article history: Received 21 November 2010 Accepted 18 June 2011 Available online 18 July 2011 Keywords: Wind turbine aerodynamics Overset grids Rotor flow Computational fluid dynamics a b s t r a c t Simulations of the National Renewable Energy Laboratory (NREL) phase VI wind turbine using dynamic overset grid technology are presented. Computations of the effect of wind speed (5,10,15 and 25 m/s) at a fixed blade pitch angle of 3 with constant rotational speed using unsteady Reynolds-Averaged NaviereStokes (RANS) and Detached Eddy Simulation (DES) turbulence models, both showing little difference in the averaged forces and moments. The effect of angle of attack is evaluated by dynamically changing the pitch from 15 to 40 at constant wind speed of 15 m/s.

Visit
nature.com article

Study on structural dynamic response of offshore wind ...

https://www.nature.com/articles/s41598-025-00471-y

# Study on structural dynamic response of offshore wind turbine under floating ice load. The structural dynamic characteristics of offshore wind turbines are directly related to the operational safety and equipment reliability of these turbines in service. In this study, we focus on the 5 MW offshore wind turbines and establish a three-dimensional turbulent flow field model at sea using the Kaimal wind speed spectrum. Leveraging OpenFAST’s open computing capabilities and EDEM’s discrete element analysis method, we investigate the dynamic response characteristics of wind turbines under separate and coupled effects of wind load, wave load, and ice load across different offshore working conditions. Our findings indicate that under coupling effects from wind-wave-ice loads, lateral and fore-aft displacement at the tower top as well as lateral and fore-aft bending moment at the tower foundation are greater compared to individual loads. A nonlinear finite element model of the integrated coupled ice induced vibration of a single pile offshore wind turbine structure under the combined action of wind and ice is established.

Visit
orbit.dtu.dk article

Wind turbines in atmospheric flow: Fluid-structure interaction simulations with hybrid turbulence modeling - Welcome to DTU Research Database

https://orbit.dtu.dk/en/publications/wind-turbines-in-atmospheric-flow-fluid-…

# Wind turbines in atmospheric flow: Fluid-structure interaction simulations with hybrid turbulence modeling. In order to design future large wind turbines, knowledge is needed about the impact of aero-elasticity on the rotor loads and performance and about the physics of the atmospheric flow surrounding the turbines. Dive into the research topics of 'Wind turbines in atmospheric flow: Fluid-structure interaction simulations with hybrid turbulence modeling'. **Wind turbines in atmospheric flow: Fluid-structure interaction simulations with hybrid turbulence modeling.** / Grinderslev, Christian; Sørensen, Niels Nørmark; Horcas, Sergio González et al. title = "Wind turbines in atmospheric flow: Fluid-structure interaction simulations with hybrid turbulence modeling",. abstract = "In order to design future large wind turbines, knowledge is needed about the impact of aero-elasticity on the rotor loads and performance and about the physics of the atmospheric flow surrounding the turbines. Grinderslev, C, Sørensen, NN, Horcas, SG, Troldborg, N & Zahle, F 2021, 'Wind turbines in atmospheric flow: Fluid-structure interaction simulations with hybrid turbulence modeling', *Wind Energy Science*, vol.

Visit