Large-Eddy Simulations for atmospheric boundary layer flows over complex terrains with applications in wind energy

Ashvinkumar Chaudhari, Ville Vuorinen, Oxana Agafonova, Antti Hellsten, Jari Hämäläinen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

8 Citations (Scopus)

Abstract

Substantial increase of wind energy production has made modeling of atmospheric boundary layer (ABL) flows over wind farms an inportant research topic. In the present work, Large Eddy Simulations (LES) are carried out to investigate the turbulent boundary layer flows over the two-dimensional RUSHIL wind-tunnel hill and the LES model is successively applied for the Bolund hill, which represents a real complex terrain. In order to validate our LES methodology presented here, the LES results are compared against the wind-tunnel and field measurements. It is shown that present LES results are in good agreement with the measurements in both cases. Furthermore, the LES methodology is utilized to simulate wind structures over the real wind-farm topography located in South-East Finland, and the preliminary results are reported in the this paper.

Original languageEnglish
Title of host publication11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014
EditorsA. Huerta, E. Onate, X. Oliver
PublisherCIMNE International Center for Numerical Methods in Engineering
Pages5205-5216
Number of pages12
ISBN (Electronic)9788494284472
Publication statusPublished - 1 Jul 2014
MoE publication typeA4 Article in a conference publication
EventJoint 11th World Congress on Computational Mechanics, WCCM 2014, the 5th European Conference on Computational Mechanics, ECCM 2014 and the 6th European Conference on Computational Fluid Dynamics, ECFD 2014 - Barcelona, Spain
Duration: 20 Jul 201425 Jul 2014

Conference

ConferenceJoint 11th World Congress on Computational Mechanics, WCCM 2014, the 5th European Conference on Computational Mechanics, ECCM 2014 and the 6th European Conference on Computational Fluid Dynamics, ECFD 2014
CountrySpain
CityBarcelona
Period20/07/201425/07/2014

Keywords

  • Atmospheric flows
  • Bolund hill
  • CFD model validation
  • Complex terrains
  • LES

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