2018
DOI: 10.1002/we.2284
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Exploring the benefits of vertically staggered wind farms: Understanding the power generation mechanisms of turbines operating at different scales

Abstract: Wind farms are known to modulate large scale structures in and around the wake regions of the turbines. The potential benefits of placing small hub height, small rotor turbines in between the large turbines in a wind farm to take advantage of such modulated large‐scale eddies are explored using large eddy simulation (LES). The study has been carried out in an infinite wind farm framework invoking an asymptotic limit, and the wind turbines are modeled using an actuator line model. The vertically staggered wind … Show more

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Cited by 10 publications
(14 citation statements)
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“…For validation of neutral ABL and wind farm simulations in spectral elements, please refer to the authors' previous work [5,40]. The wind turbines are modeled as actuator-line models [41][42][43][44]. Moreover, the finite-sized layout is inherently heterogeneous due to the streamwise growth of the internal boundary layer, wake impingement effects etc.…”
Section: Numerical Setupmentioning
confidence: 99%
See 2 more Smart Citations
“…For validation of neutral ABL and wind farm simulations in spectral elements, please refer to the authors' previous work [5,40]. The wind turbines are modeled as actuator-line models [41][42][43][44]. Moreover, the finite-sized layout is inherently heterogeneous due to the streamwise growth of the internal boundary layer, wake impingement effects etc.…”
Section: Numerical Setupmentioning
confidence: 99%
“…This illustrates that the smallest resolved length scales is an order of magnitude smaller than the turbine rotor size, d. Note, here that the definition of lengthscales or wavelength resolved is 4 based on the Nyquist limit of the coarsest grid size ( twice the coarsest grid size). For more details of how the grid sizes were defined, See [5,43]. From table 1 it is apparent that the precursor neutral ABL has a much uniform distribution of grids compared to the wind turbine (WT) domain.…”
Section: Numerical Setupmentioning
confidence: 99%
See 1 more Smart Citation
“…For more details related to the validation of the LES framework of neutral ABL and wind farm simulations in spectral elements, please refer to the authors' previous work [5,43]. The wind turbines are modeled as actuator-line (AL) models [39,[44][45][46] without having to resolve the blades. In the current AL simulations, Tjaereborg turbines have been used [44].…”
Section: Numerical Setupmentioning
confidence: 99%
“…This illustrates that the smallest resolved length scales is an order of magnitude smaller than the turbine rotor size, d. Note, here that the definition of lengthscales or wavelength resolved is based on the Nyquist limit of the coarsest grid size (twice the coarsest grid size). For more details of how the grid sizes were defined, see [5,46]. From Table 1 it is apparent that the precursor neutral ABL has a much uniform distribution of grids compared to the wind turbine (WT) domain.…”
Section: Numerical Setupmentioning
confidence: 99%