Simulation of wind turbine wakes using the actuator line technique

Sorensen, Jens N.Uppsala universitet,Institutionen för geovetenskaper (författare)

Updated from "Pre-print" to "Article in journal". QC 20150227
The actuator line technique was introduced as a numerical tool to be employed in combination with large eddy simulations to enable the study of wakes and wake interaction in wind farms. The technique is today largely used for studying basic features of wakes as well as for making performance predictions of wind farms. In this paper, we give a short introduction to the wake problem and the actuator line methodology and present a study in which the technique is employed to determine the near-wake properties of wind turbines. The presented results include a comparison of experimental results of the wake characteristics of the flow around a three-bladed model wind turbine, the development of a simple analytical formula for determining the near-wake length behind a wind turbine and a detailed investigation of wake structures based on proper orthogonal decomposition analysis of numerically generated snapshots of the wake.

Mikkelsen, Robert F.DTU Wind Energy (författare)
Henningson, Dan S.KTH,Stabilitet, Transition, Kontroll,Linné Flow Center, FLOW,SeRC - Swedish e-Science Research Centre(Swepub:kth)u1xtilpr (författare)
Ivanell, StehanUppsala universitet,KTH,Linné Flow Center, FLOW,SeRC - Swedish e-Science Research Centre,Uppsala University,Institutionen för geovetenskaper(Swepub:uu)steiv197 (författare)
Sarmast, SasanKTH,Stabilitet, Transition, Kontroll,Linné Flow Center, FLOW,SeRC - Swedish e-Science Research Centre(Swepub:kth)u1d72vbu (författare)
Andersen, Soren J.DTU Wind Energy (författare)
Uppsala universitetInstitutionen för geovetenskaper (creator_code:org_t)

Ingår i:Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences: The Royal Society373, s. 2035-1364-503X1471-2962

Av författaren/redakt...: Sorensen, Jens N ...; Mikkelsen, Rober ...; Henningson, Dan ...; Ivanell, Stehan; Sarmast, Sasan; Andersen, Soren ...

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