The flow upstream of a row of aligned wind turbine rotors and its effect on power production

Research output: Research - peer-reviewJournal article – Annual report year: 2016

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The flow upstream of a row of aligned wind turbine rotors and its effect on power production. / Meyer Forsting, Alexander Raul; Troldborg, Niels; Gaunaa, Mac.

In: Wind Energy, Vol. 20, No. 1, 2017, p. 63–77.

Research output: Research - peer-reviewJournal article – Annual report year: 2016

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@article{68f0a80fbdeb4cbbb9ead835224e56ee,
title = "The flow upstream of a row of aligned wind turbine rotors and its effect on power production",
abstract = "The blockage developing in front of a laterally aligned row of wind turbines and its impact on power production over a single turbine was analysed using two different numerical methods. The inflow direction was varied from orthogonal to the row until 45◦, with the turbines turning into the wind, thereby resembling a wind turbine testing site or row in a wind park. The numerical methods included computational fluid dynamics (CFD) with an actuator disc representation of the rotor and a simple vortex method. The forces on the actuator disc were either derived from airfoil data of a modern wind turbine or set as constant. For all methods significant changes were found in the developing flow-field with corresponding effects on the individual power output of the wind turbines. These became more pronounced with increasing inflow angle and predicted a rise in power of up to 2{\%} for the downstream and -1{\%} for the upstream turbines. The vortex method agreed with the CFD method on the overall trend, but its magnitude was lower.",
author = "{Meyer Forsting}, {Alexander Raul} and Niels Troldborg and Mac Gaunaa",
year = "2017",
doi = "10.1002/we.1991",
language = "English",
volume = "20",
pages = "63–77",
journal = "Wind Energy",
issn = "1095-4244",
publisher = "JohnWiley & Sons Ltd.",
number = "1",

}

RIS

TY - JOUR

T1 - The flow upstream of a row of aligned wind turbine rotors and its effect on power production

AU - Meyer Forsting,Alexander Raul

AU - Troldborg,Niels

AU - Gaunaa,Mac

PY - 2017

Y1 - 2017

N2 - The blockage developing in front of a laterally aligned row of wind turbines and its impact on power production over a single turbine was analysed using two different numerical methods. The inflow direction was varied from orthogonal to the row until 45◦, with the turbines turning into the wind, thereby resembling a wind turbine testing site or row in a wind park. The numerical methods included computational fluid dynamics (CFD) with an actuator disc representation of the rotor and a simple vortex method. The forces on the actuator disc were either derived from airfoil data of a modern wind turbine or set as constant. For all methods significant changes were found in the developing flow-field with corresponding effects on the individual power output of the wind turbines. These became more pronounced with increasing inflow angle and predicted a rise in power of up to 2% for the downstream and -1% for the upstream turbines. The vortex method agreed with the CFD method on the overall trend, but its magnitude was lower.

AB - The blockage developing in front of a laterally aligned row of wind turbines and its impact on power production over a single turbine was analysed using two different numerical methods. The inflow direction was varied from orthogonal to the row until 45◦, with the turbines turning into the wind, thereby resembling a wind turbine testing site or row in a wind park. The numerical methods included computational fluid dynamics (CFD) with an actuator disc representation of the rotor and a simple vortex method. The forces on the actuator disc were either derived from airfoil data of a modern wind turbine or set as constant. For all methods significant changes were found in the developing flow-field with corresponding effects on the individual power output of the wind turbines. These became more pronounced with increasing inflow angle and predicted a rise in power of up to 2% for the downstream and -1% for the upstream turbines. The vortex method agreed with the CFD method on the overall trend, but its magnitude was lower.

U2 - 10.1002/we.1991

DO - 10.1002/we.1991

M3 - Journal article

VL - 20

SP - 63

EP - 77

JO - Wind Energy

T2 - Wind Energy

JF - Wind Energy

SN - 1095-4244

IS - 1

ER -