Wind turbine wake modeling in accelerating wind field: A preliminary study on a two-dimensional hill

Omar M.A.M. Ibrahim, Shigeo Yoshida, Masahiro Hamasaki, Ao Takada

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

Complex terrain can influence wind turbine wakes and wind speed profiles in a wind farm. Consequently, predicting the performance of wind turbines and energy production over complex terrain is more difficult than it is over flat terrain. In this preliminary study, an engineering wake model, that considers acceleration on a two-dimensional hill, was developed based on the momentum theory. The model consists of the wake width and wake wind speed. The equation to calculate the rotor thrust, which is calculated by the wake wind speed profiles, was also formulated. Then, a wind-tunnel test was performed in simple flow conditions in order to investigate wake development over a two-dimensional hill. After this the wake model was compared with the wind-tunnel test, and the results obtained by using the new wake model were close to the wind-tunnel test results. Using the new wake model, it was possible to estimate the wake shrinkage in an accelerating two-dimensional wind field.

本文言語英語
論文番号153
ジャーナルFluids
4
3
DOI
出版ステータス出版済み - 8 9 2019

All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 機械工学
  • 流体および伝熱

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