Aerodynamic Performance of Vertical-Axis Wind Turbines

The nonstationary separated incompressible flows around Darrieus and Savonius rotors of vertical-axis wind turbines were investigated through computational simulation using the Reynolds averaged Navier–Stokes equations and Spalart–Allmaras turbulence model. The implicit finite-volume algorithm, the...

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Autores: Redchyts, Dmytro, Portal Porras, Koldo, Tarasov, Serhii, Moiseienko, Svitlana, Tuchyna, Uliana, Starun, Natalya, Fernández Gámiz, Unai
Tipo de documento: artigo
Data de publicação:2023
País:España
Recursos:Universidad del País Vasco
Repositório:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/62671
Acesso em linha:http://hdl.handle.net/10810/62671
Access Level:Acceso aberto
Palavra-chave:vertical-axis wind turbine
RANS
CFD
aerodynamics
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spelling Aerodynamic Performance of Vertical-Axis Wind TurbinesRedchyts, DmytroPortal Porras, KoldoTarasov, SerhiiMoiseienko, SvitlanaTuchyna, UlianaStarun, NatalyaFernández Gámiz, Unaivertical-axis wind turbineRANSCFDaerodynamicsThe nonstationary separated incompressible flows around Darrieus and Savonius rotors of vertical-axis wind turbines were investigated through computational simulation using the Reynolds averaged Navier–Stokes equations and Spalart–Allmaras turbulence model. The implicit finite-volume algorithm, the basis of which was artificial compressibility method, was chosen to obtain the numerical solution. The series of computational and physical experiments for Darrieus rotors with varied numbers and shapes of blades were performed. The detailed visualization of the flow was presented. The turbulent flows surrounding the Darrieus and Savonius rotors were studied, and as a part of these investigations, the major phases of vortex progress were identified. For this purpose, three series of computer tests on the aerodynamic and power properties of Savonius rotors with two and three buckets were performed, and their results are also presented. The influence of tip-speed ratio, solidity, and Reynolds numbers on the power coefficients of the Darrieus and Savonius rotors was investigated. It has been demonstrated that increasing Reynolds number from 104 to 106 causes a rise in Darrieus rotors power coefficient from 0.15 up to 0.5. The maximum values of power coefficient are moved away from higher values of tip-speed ratio from 2 to 5 as a result of a decrease in Darrieus rotor solidity from 1.0 to 0.33. The greatest power coefficient for a Savonius rotor with two blades is 0.23 and for a Savonius rotor with three blades is 0.19.U.F.-G. was supported by the government of the Basque Country through the research grant ELKARTEK KK-2021/00014 BASQNET (Estudio de nuevas técnicas de inteligencia artificial basadas en Deep Learning dirigidas a la optimización de procesos industriales) and IT1514-22. K.P.-P. was supported by INVESTIGO program of the Basque Country 2022.MDPI2023202320232023info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/62671reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://www.mdpi.com/2077-1312/11/7/1367info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).oai:addi.ehu.eus:10810/626712026-06-18T09:23:17Z
dc.title.none.fl_str_mv Aerodynamic Performance of Vertical-Axis Wind Turbines
title Aerodynamic Performance of Vertical-Axis Wind Turbines
spellingShingle Aerodynamic Performance of Vertical-Axis Wind Turbines
Redchyts, Dmytro
vertical-axis wind turbine
RANS
CFD
aerodynamics
title_short Aerodynamic Performance of Vertical-Axis Wind Turbines
title_full Aerodynamic Performance of Vertical-Axis Wind Turbines
title_fullStr Aerodynamic Performance of Vertical-Axis Wind Turbines
title_full_unstemmed Aerodynamic Performance of Vertical-Axis Wind Turbines
title_sort Aerodynamic Performance of Vertical-Axis Wind Turbines
dc.creator.none.fl_str_mv Redchyts, Dmytro
Portal Porras, Koldo
Tarasov, Serhii
Moiseienko, Svitlana
Tuchyna, Uliana
Starun, Natalya
Fernández Gámiz, Unai
author Redchyts, Dmytro
author_facet Redchyts, Dmytro
Portal Porras, Koldo
Tarasov, Serhii
Moiseienko, Svitlana
Tuchyna, Uliana
Starun, Natalya
Fernández Gámiz, Unai
author_role author
author2 Portal Porras, Koldo
Tarasov, Serhii
Moiseienko, Svitlana
Tuchyna, Uliana
Starun, Natalya
Fernández Gámiz, Unai
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv vertical-axis wind turbine
RANS
CFD
aerodynamics
topic vertical-axis wind turbine
RANS
CFD
aerodynamics
description The nonstationary separated incompressible flows around Darrieus and Savonius rotors of vertical-axis wind turbines were investigated through computational simulation using the Reynolds averaged Navier–Stokes equations and Spalart–Allmaras turbulence model. The implicit finite-volume algorithm, the basis of which was artificial compressibility method, was chosen to obtain the numerical solution. The series of computational and physical experiments for Darrieus rotors with varied numbers and shapes of blades were performed. The detailed visualization of the flow was presented. The turbulent flows surrounding the Darrieus and Savonius rotors were studied, and as a part of these investigations, the major phases of vortex progress were identified. For this purpose, three series of computer tests on the aerodynamic and power properties of Savonius rotors with two and three buckets were performed, and their results are also presented. The influence of tip-speed ratio, solidity, and Reynolds numbers on the power coefficients of the Darrieus and Savonius rotors was investigated. It has been demonstrated that increasing Reynolds number from 104 to 106 causes a rise in Darrieus rotors power coefficient from 0.15 up to 0.5. The maximum values of power coefficient are moved away from higher values of tip-speed ratio from 2 to 5 as a result of a decrease in Darrieus rotor solidity from 1.0 to 0.33. The greatest power coefficient for a Savonius rotor with two blades is 0.23 and for a Savonius rotor with three blades is 0.19.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/62671
url http://hdl.handle.net/10810/62671
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.mdpi.com/2077-1312/11/7/1367
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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