Numerical Simulations of Wakes of Wind Turbines in Wind Farms

Niels Troldborg; Jens Nørkær Sørensen; Robert Flemming Mikkelsen

Numerical Simulations of Wakes of Wind Turbines in Wind Farms

Niels Troldborg, Jens Nørkær Sørensen, Robert Flemming Mikkelsen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Wakes of both a stand-alone wind turbine and 3 wind turbines placed in a row is analysed using a numerical method where a three-dimensional Navier Stokes solver is combined with an actuator line technique. The computations on the single turbine indicate the appearance of low frequency fluctuations of the wake similar to what is observed behind a disc. Furthermore, the computations on a row of turbines demonstrate that downstream turbines might experience the distinct tip vortices formed in the wake of upstream turbines. Results also show that placing the turbines too closely can significantly reduce the produced power.

Original language	English
Title of host publication	EWEC 2006
Publication date	2006
Publication status	Published - 2006
Event	2006 European Wind Energy Conference and Exhibition - Athens, Greece Duration: 27 Feb 2006 → 2 Mar 2006

Conference

Conference	2006 European Wind Energy Conference and Exhibition
Country/Territory	Greece
City	Athens
Period	27/02/2006 → 02/03/2006

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title = "Numerical Simulations of Wakes of Wind Turbines in Wind Farms",

abstract = "Wakes of both a stand-alone wind turbine and 3 wind turbines placed in a row is analysed using a numerical method where a three-dimensional Navier Stokes solver is combined with an actuator line technique. The computations on the single turbine indicate the appearance of low frequency fluctuations of the wake similar to what is observed behind a disc. Furthermore, the computations on a row of turbines demonstrate that downstream turbines might experience the distinct tip vortices formed in the wake of upstream turbines. Results also show that placing the turbines too closely can significantly reduce the produced power.",

author = "Niels Troldborg and S{\o}rensen, {Jens N{\o}rk{\ae}r} and Mikkelsen, {Robert Flemming}",

year = "2006",

language = "English",

booktitle = "EWEC 2006",

note = "2006 European Wind Energy Conference and Exhibition, EWEC 2006 ; Conference date: 27-02-2006 Through 02-03-2006",

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TY - GEN

T1 - Numerical Simulations of Wakes of Wind Turbines in Wind Farms

AU - Troldborg, Niels

AU - Sørensen, Jens Nørkær

AU - Mikkelsen, Robert Flemming

PY - 2006

Y1 - 2006

N2 - Wakes of both a stand-alone wind turbine and 3 wind turbines placed in a row is analysed using a numerical method where a three-dimensional Navier Stokes solver is combined with an actuator line technique. The computations on the single turbine indicate the appearance of low frequency fluctuations of the wake similar to what is observed behind a disc. Furthermore, the computations on a row of turbines demonstrate that downstream turbines might experience the distinct tip vortices formed in the wake of upstream turbines. Results also show that placing the turbines too closely can significantly reduce the produced power.

AB - Wakes of both a stand-alone wind turbine and 3 wind turbines placed in a row is analysed using a numerical method where a three-dimensional Navier Stokes solver is combined with an actuator line technique. The computations on the single turbine indicate the appearance of low frequency fluctuations of the wake similar to what is observed behind a disc. Furthermore, the computations on a row of turbines demonstrate that downstream turbines might experience the distinct tip vortices formed in the wake of upstream turbines. Results also show that placing the turbines too closely can significantly reduce the produced power.

M3 - Article in proceedings

BT - EWEC 2006

T2 - 2006 European Wind Energy Conference and Exhibition

Y2 - 27 February 2006 through 2 March 2006

ER -

Numerical Simulations of Wakes of Wind Turbines in Wind Farms

Abstract

Conference

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