Change search
ReferencesLink to record
Permanent link

Direct link
Wind Flow Analysis on a Complex Terrain: a reliability study of a CFD tool on forested area including effects of forest module
Gotland University, School of Culture, Energy and Environment.
2011 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The main aim of this thesis is to compare actual power production from an existing wind farm with power production prediction by WindSim, which is a CFD tool based on the nonlinear flow model. The wind farm that is being worked on is located in Northern Sweden and has high orographic complexity with forested hilly terrain. There is 1 year record of met-mast wind measurements and nearly 2 years record of production data.Firstly roughness and height contours data are put as an input in order to simulate and generate wind fields over the complex terrain. In addition forest model is used to get more detailed roughness height. After generating wind fields existing turbine locations and 1-year wind speed measurement are imported.The results show that how accurate are the CFD calculations to solve turbulence in a complex terrain. Comparison between actual production data with energy production results by simulations is the main approach of this thesis work to validate the simulations.The results indicate that both WAsP and WindSim have overestimated energy production and wind speed as well. However particularly with WindSim forest module CFD calculations have more accurate results than without forest module and WAsP estimations.

Place, publisher, year, edition, pages
2011. , 35 p.
Keyword [en]
Wind, Complex terrain, Forest, CFD, WindSim
National Category
Engineering and Technology Energy Engineering
URN: urn:nbn:se:hgo:diva-1150OAI: diva2:458063
Subject / course
Energy Technology (HGO)
Educational program
Master Program in Wind Power Project Management, 60 hp (HGO)
Available from: 2011-11-25 Created: 2011-11-21 Last updated: 2014-03-27Bibliographically approved

Open Access in DiVA

Wind Flow Analysis on a Complex Terrain(1845 kB)1725 downloads
File information
File name FULLTEXT02.pdfFile size 1845 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Teneler, Görkem
By organisation
School of Culture, Energy and Environment
Engineering and TechnologyEnergy Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 1733 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 489 hits
ReferencesLink to record
Permanent link

Direct link