Experimental and Numerical study of Wake to Wake Interaction in Wind Farms

Ewan Machefaux; Niels Troldborg; Gunner Chr. Larsen; Jakob Mann; Helge Aagaard Madsen

Experimental and Numerical study of Wake to Wake Interaction in Wind Farms

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Abstract

In this paper, wake interaction between two wind turbines
is analyzed using experimental and numerical
approaches. Full-scale wake measurements are
conducted at Tjæreborg wind farm and are obtained
using a continuous wave lidar mounted on the back
of the nacelle of a 2MW NM80 turbine. Numerical
analyses are conducted for two double wake cases
characterized by different turbine spacing, using the
in-house EllipSys3D flow solver. Large Eddy Simulation
and Actuator Line technique are used for modeling
the rotor and the flow field. 10-minute average
streamwise velocity and turbulence level are compared,
and good agreement is seen between the
measurements and the computations despite of a
lateral offset and other discrepancies due to uncertainties
on the measured inflow conditions and lidar
mounting alignment.

Original language	English
Title of host publication	Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition
Number of pages	10
Publisher	European Wind Energy Association (EWEA)
Publication date	2012
Publication status	Published - 2012
Event	EWEC 2012 - European Wind Energy Conference & Exhibition - Copenhagen, Denmark Duration: 16 Apr 2012 → 19 Apr 2012 http://events.ewea.org/annual2012/

Conference

Conference	EWEC 2012 - European Wind Energy Conference & Exhibition
Country/Territory	Denmark
City	Copenhagen
Period	16/04/2012 → 19/04/2012
Internet address	http://events.ewea.org/annual2012/

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@inproceedings{f10f9a8ab95b441facb5fe0c38e22215,

title = "Experimental and Numerical study of Wake to Wake Interaction in Wind Farms",

abstract = "In this paper, wake interaction between two wind turbines is analyzed using experimental and numerical approaches. Full-scale wake measurements are conducted at Tj{\ae}reborg wind farm and are obtained using a continuous wave lidar mounted on the back of the nacelle of a 2MW NM80 turbine. Numerical analyses are conducted for two double wake cases characterized by different turbine spacing, using the in-house EllipSys3D flow solver. Large Eddy Simulation and Actuator Line technique are used for modeling the rotor and the flow field. 10-minute average streamwise velocity and turbulence level are compared, and good agreement is seen between the measurements and the computations despite of a lateral offset and other discrepancies due to uncertainties on the measured inflow conditions and lidar mounting alignment.",

author = "Ewan Machefaux and Niels Troldborg and Larsen, \{Gunner Chr.\} and Jakob Mann and \{Aagaard Madsen\}, Helge",

year = "2012",

language = "English",

booktitle = "Proceedings of EWEA 2012 - European Wind Energy Conference \& Exhibition",

publisher = "European Wind Energy Association (EWEA)",

note = "EWEC 2012 - European Wind Energy Conference \& Exhibition, EWEC 2012 ; Conference date: 16-04-2012 Through 19-04-2012",

url = "http://events.ewea.org/annual2012/",

}

Experimental and Numerical study of Wake to Wake Interaction in Wind Farms. / Machefaux, Ewan; Troldborg, Niels ; Larsen, Gunner Chr. et al.
Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 2012.

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

TY - GEN

T1 - Experimental and Numerical study of Wake to Wake Interaction in Wind Farms

AU - Machefaux, Ewan

AU - Troldborg, Niels

AU - Larsen, Gunner Chr.

AU - Mann, Jakob

AU - Aagaard Madsen , Helge

PY - 2012

Y1 - 2012

N2 - In this paper, wake interaction between two wind turbines is analyzed using experimental and numerical approaches. Full-scale wake measurements are conducted at Tjæreborg wind farm and are obtained using a continuous wave lidar mounted on the back of the nacelle of a 2MW NM80 turbine. Numerical analyses are conducted for two double wake cases characterized by different turbine spacing, using the in-house EllipSys3D flow solver. Large Eddy Simulation and Actuator Line technique are used for modeling the rotor and the flow field. 10-minute average streamwise velocity and turbulence level are compared, and good agreement is seen between the measurements and the computations despite of a lateral offset and other discrepancies due to uncertainties on the measured inflow conditions and lidar mounting alignment.

AB - In this paper, wake interaction between two wind turbines is analyzed using experimental and numerical approaches. Full-scale wake measurements are conducted at Tjæreborg wind farm and are obtained using a continuous wave lidar mounted on the back of the nacelle of a 2MW NM80 turbine. Numerical analyses are conducted for two double wake cases characterized by different turbine spacing, using the in-house EllipSys3D flow solver. Large Eddy Simulation and Actuator Line technique are used for modeling the rotor and the flow field. 10-minute average streamwise velocity and turbulence level are compared, and good agreement is seen between the measurements and the computations despite of a lateral offset and other discrepancies due to uncertainties on the measured inflow conditions and lidar mounting alignment.

M3 - Article in proceedings

BT - Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition

PB - European Wind Energy Association (EWEA)

T2 - EWEC 2012 - European Wind Energy Conference & Exhibition

Y2 - 16 April 2012 through 19 April 2012

ER -

Experimental and Numerical study of Wake to Wake Interaction in Wind Farms

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