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Comparison of three DWM-based wake models at above-rated wind speeds

Journal Article · · Journal of Physics. Conference Series
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  1. Institute for Energy Technology (IFE), Kjeller (Norway)
  2. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  3. Technical Univ. of Denmark, Roskilde (Denmark)
  4. Uppsala Univ. (Sweden)
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In this study we investigate three mid-fidelity wind turbine wake models based on the dynamic wake meandering (DWM) model principle, and compare their performance with a reference dataset, produced with large-eddy simulations using the actuator line model. The models are compared with respect to flow field, power, and loads on a row of four 5MW reference turbines experiencing above-rated wind conditions. In general, the DWM models show fairly good agreement with large-eddy simulation for the time-averaged flow fields, blade forces and power, with increasing differences along the turbine row. Also when comparing fatigue loads of blade root moments, the differences between the models increase further into the row, with deviations up to 25 % of the reference case. However, while the development in blade root moment fatigue along the turbine row is predominantly driven by the energy content at the frequency corresponding to the turbine's rotational period (1P) for the DWM models, the large-eddy simulation results suggest that the key drivers for the blade root and tower loads are the increase in meandering and energy at higher frequencies (> 1P) deeper into the turbine row. For the tower loads, the DWM models highly underestimate the fatigue for the waked turbines. From these results, we suggest priorities for future model developments so that robust model implementations can be used in wind farm design and operation.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
Institute for Energy Technology; Institute for Energy Technology (Norway); USDOE Office of Science (SC)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1992503
Report Number(s):
NREL/JA-5000-85846; MainId:86619; UUID:2b8c505f-6f50-498b-a91b-2798a75a13b3; MainAdminID:69451
Journal Information:
Journal of Physics. Conference Series, Journal Name: Journal of Physics. Conference Series Journal Issue: 1 Vol. 2505; ISSN 1742-6588
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

References (15)

Validation of the dynamic wake meander model for loads and power production in the Egmond aan Zee wind farm: Full scale validation of the DWM model for loads and power production journal October 2012
Wake meandering: a pragmatic approach journal July 2008
Numerical simulations of wake characteristics of a wind turbine in uniform inflow journal January 2010
Stratocumulus-capped mixed layers derived from a three-dimensional model journal June 1980
Calculating the flowfield in the wake of wind turbines journal January 1988
On the wind speed reduction in the center of large clusters of wind turbines journal January 1992
Wind field simulation journal October 1998
Development, Verification and Validation of 3DFloat; Aero-servo-hydro-elastic Computations of Offshore Structures journal September 2016
A statistical model for wake meandering behind wind turbines journal October 2019
Wind turbine response in waked inflow: A modelling benchmark against full-scale measurements journal May 2022
The spatial structure of neutral atmospheric surface-layer turbulence journal August 1994
Numerical Modeling of Wind Turbine Wakes journal May 2002
Calibration and Validation of the Dynamic Wake Meandering Model for Implementation in an Aeroelastic Code journal October 2010
Energy Effectiveness of Arbitrary Arrays of Wind Turbines journal November 1979
A vortex-based tip/smearing correction for the actuator line journal January 2019

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Related Subjects

17 WIND ENERGY
5-MW baseline wind turbine
FAST.Farm
above-rated wind speed
dynamic wake meandering
large eddy simulation
validation
verification