2-D CFD Computations of the Two-Bladed Darrieus-Type Wind Turbine

K. Rogowski*, Martin Otto Laver Hansen, P. Lichota

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

In spite of the attractiveness of CFD methods and advanced measurement methods, there is still no full analysis of aerodynamic blade loads for vertical axis Darrieus-type wind turbines. Due to an inherently unsteady flow around the rotor blades, blade-wake-blade interaction and the occurrence of dynamic stall, the aerodynamics of this type of wind turbine is very complex. A two-bladed rotor have been investigated numerically for the tip speed ratio of 5.0. This paper compares results for aerodynamic blade loads obtained applying such turbulence models as: the standard k-epsilon; the RNG k-epsilon; the Realizable k-epsilon and the SST k-omega. As a result, quantitative instantaneous blade forces as well as instantaneous wake profiles behind the rotor have been obtained. Aerodynamic wake behind the rotor is also visualized by using streak lines. All CFD results are compared with experimental data taken from literature. Good agreement between the numerical results and the experiment is shown for the aerodynamic blade loads as well as for aerodynamic wake behind the rotor.
Original languageEnglish
JournalJournal of Applied Fluid Mechanics
Volume11
Issue number4
Pages (from-to)835-845
ISSN1735-3572
DOIs
Publication statusPublished - 2018

Cite this

@article{17a83f4b9f1f414da470a4d851e62463,
title = "2-D CFD Computations of the Two-Bladed Darrieus-Type Wind Turbine",
abstract = "In spite of the attractiveness of CFD methods and advanced measurement methods, there is still no full analysis of aerodynamic blade loads for vertical axis Darrieus-type wind turbines. Due to an inherently unsteady flow around the rotor blades, blade-wake-blade interaction and the occurrence of dynamic stall, the aerodynamics of this type of wind turbine is very complex. A two-bladed rotor have been investigated numerically for the tip speed ratio of 5.0. This paper compares results for aerodynamic blade loads obtained applying such turbulence models as: the standard k-epsilon; the RNG k-epsilon; the Realizable k-epsilon and the SST k-omega. As a result, quantitative instantaneous blade forces as well as instantaneous wake profiles behind the rotor have been obtained. Aerodynamic wake behind the rotor is also visualized by using streak lines. All CFD results are compared with experimental data taken from literature. Good agreement between the numerical results and the experiment is shown for the aerodynamic blade loads as well as for aerodynamic wake behind the rotor.",
author = "K. Rogowski and Hansen, {Martin Otto Laver} and P. Lichota",
year = "2018",
doi = "10.18869/acadpub.jafm.73.247.28383",
language = "English",
volume = "11",
pages = "835--845",
journal = "Journal of Applied Fluid Mechanics",
issn = "1735-3572",
publisher = "Isfahan University of Technology",
number = "4",

}

2-D CFD Computations of the Two-Bladed Darrieus-Type Wind Turbine. / Rogowski, K.; Hansen, Martin Otto Laver; Lichota, P.

In: Journal of Applied Fluid Mechanics, Vol. 11, No. 4, 2018, p. 835-845.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - 2-D CFD Computations of the Two-Bladed Darrieus-Type Wind Turbine

AU - Rogowski, K.

AU - Hansen, Martin Otto Laver

AU - Lichota, P.

PY - 2018

Y1 - 2018

N2 - In spite of the attractiveness of CFD methods and advanced measurement methods, there is still no full analysis of aerodynamic blade loads for vertical axis Darrieus-type wind turbines. Due to an inherently unsteady flow around the rotor blades, blade-wake-blade interaction and the occurrence of dynamic stall, the aerodynamics of this type of wind turbine is very complex. A two-bladed rotor have been investigated numerically for the tip speed ratio of 5.0. This paper compares results for aerodynamic blade loads obtained applying such turbulence models as: the standard k-epsilon; the RNG k-epsilon; the Realizable k-epsilon and the SST k-omega. As a result, quantitative instantaneous blade forces as well as instantaneous wake profiles behind the rotor have been obtained. Aerodynamic wake behind the rotor is also visualized by using streak lines. All CFD results are compared with experimental data taken from literature. Good agreement between the numerical results and the experiment is shown for the aerodynamic blade loads as well as for aerodynamic wake behind the rotor.

AB - In spite of the attractiveness of CFD methods and advanced measurement methods, there is still no full analysis of aerodynamic blade loads for vertical axis Darrieus-type wind turbines. Due to an inherently unsteady flow around the rotor blades, blade-wake-blade interaction and the occurrence of dynamic stall, the aerodynamics of this type of wind turbine is very complex. A two-bladed rotor have been investigated numerically for the tip speed ratio of 5.0. This paper compares results for aerodynamic blade loads obtained applying such turbulence models as: the standard k-epsilon; the RNG k-epsilon; the Realizable k-epsilon and the SST k-omega. As a result, quantitative instantaneous blade forces as well as instantaneous wake profiles behind the rotor have been obtained. Aerodynamic wake behind the rotor is also visualized by using streak lines. All CFD results are compared with experimental data taken from literature. Good agreement between the numerical results and the experiment is shown for the aerodynamic blade loads as well as for aerodynamic wake behind the rotor.

U2 - 10.18869/acadpub.jafm.73.247.28383

DO - 10.18869/acadpub.jafm.73.247.28383

M3 - Journal article

VL - 11

SP - 835

EP - 845

JO - Journal of Applied Fluid Mechanics

JF - Journal of Applied Fluid Mechanics

SN - 1735-3572

IS - 4

ER -