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Wind-Wave Interaction Effects on a Wind Farm Power Production

Alsam, A.; Szasz, R. LU and Revstedt, J. LU (2017) In Journal of Energy Resources Technology, Transactions of the ASME 139(5).
Abstract

In the current study, the effects of the nonlocally generated long sea surface waves (swells) on the power production of a 2 × 2 wind farm are investigated by using large-eddy simulations (LES) and actuator-line method (ALM). The short sea waves are modeled as a roughness height, while the wave-induced stress accounting for swell effects is added as an external source term to the momentum equations. The results show that the marine atmospheric boundary layers (MABLs) obtained in this study have similar characteristics as the MABLs observed during the swell conditions by many other studies. The current results indicate also that swells have significant impacts on the MABL. As a consequence of these changes in the MABL, swells moving... (More)

In the current study, the effects of the nonlocally generated long sea surface waves (swells) on the power production of a 2 × 2 wind farm are investigated by using large-eddy simulations (LES) and actuator-line method (ALM). The short sea waves are modeled as a roughness height, while the wave-induced stress accounting for swell effects is added as an external source term to the momentum equations. The results show that the marine atmospheric boundary layers (MABLs) obtained in this study have similar characteristics as the MABLs observed during the swell conditions by many other studies. The current results indicate also that swells have significant impacts on the MABL. As a consequence of these changes in the MABL, swells moving faster than the wind and aligned with the local wind direction increase the power extraction rate.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Energy Resources Technology, Transactions of the ASME
volume
139
issue
5
publisher
American Society Of Mechanical Engineers (ASME)
external identifiers
  • scopus:85020938250
  • wos:000411139800015
ISSN
0195-0738
DOI
10.1115/1.4036542
language
English
LU publication?
yes
id
39094da8-d45e-46da-8ccb-69e4b08706f4
date added to LUP
2017-07-04 07:45:28
date last changed
2018-01-16 13:20:58
@article{39094da8-d45e-46da-8ccb-69e4b08706f4,
  abstract     = {<p>In the current study, the effects of the nonlocally generated long sea surface waves (swells) on the power production of a 2 × 2 wind farm are investigated by using large-eddy simulations (LES) and actuator-line method (ALM). The short sea waves are modeled as a roughness height, while the wave-induced stress accounting for swell effects is added as an external source term to the momentum equations. The results show that the marine atmospheric boundary layers (MABLs) obtained in this study have similar characteristics as the MABLs observed during the swell conditions by many other studies. The current results indicate also that swells have significant impacts on the MABL. As a consequence of these changes in the MABL, swells moving faster than the wind and aligned with the local wind direction increase the power extraction rate.</p>},
  articleno    = {051213},
  author       = {Alsam, A. and Szasz, R. and Revstedt, J.},
  issn         = {0195-0738},
  language     = {eng},
  month        = {09},
  number       = {5},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  series       = {Journal of Energy Resources Technology, Transactions of the ASME},
  title        = {Wind-Wave Interaction Effects on a Wind Farm Power Production},
  url          = {http://dx.doi.org/10.1115/1.4036542},
  volume       = {139},
  year         = {2017},
}