Effect of the blade arc angle on the performance of a Savonius wind turbine

Savonius wind turbine is a common vertical axis wind turbine which simply comprises two or three arc-type blades and can generate power under poor wind conditions. With the aim of increasing the turbine’s power efficiency, the effect of the blade arc angle on the performance of a typical two-bladed...

Full description

Bibliographic Details
Main Authors: Zhaoyong Mao, Wenlong Tian
Format: Article
Language:English
Published: SAGE Publishing 2015-05-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814015584247
_version_ 1818117864662499328
author Zhaoyong Mao
Wenlong Tian
author_facet Zhaoyong Mao
Wenlong Tian
author_sort Zhaoyong Mao
collection DOAJ
description Savonius wind turbine is a common vertical axis wind turbine which simply comprises two or three arc-type blades and can generate power under poor wind conditions. With the aim of increasing the turbine’s power efficiency, the effect of the blade arc angle on the performance of a typical two-bladed Savonius wind turbine is investigated with a transient computational fluid dynamics method. Simulations were based on the Reynolds Averaged Navier–Stokes equations, and the renormalization group k − ε turbulent model was utilized. The numerical method was validated with existing experimental data. The results indicate that the turbine with a blade arc angle of 160 ∘ generates the maximum power coefficient, 0.2836, which is 8.37% higher than that from a conventional Savonius turbine.
first_indexed 2024-12-11T04:45:11Z
format Article
id doaj.art-16fd79d2cbcb4230b043f753513de905
institution Directory Open Access Journal
issn 1687-8140
language English
last_indexed 2024-12-11T04:45:11Z
publishDate 2015-05-01
publisher SAGE Publishing
record_format Article
series Advances in Mechanical Engineering
spelling doaj.art-16fd79d2cbcb4230b043f753513de9052022-12-22T01:20:31ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402015-05-01710.1177/168781401558424710.1177_1687814015584247Effect of the blade arc angle on the performance of a Savonius wind turbineZhaoyong MaoWenlong TianSavonius wind turbine is a common vertical axis wind turbine which simply comprises two or three arc-type blades and can generate power under poor wind conditions. With the aim of increasing the turbine’s power efficiency, the effect of the blade arc angle on the performance of a typical two-bladed Savonius wind turbine is investigated with a transient computational fluid dynamics method. Simulations were based on the Reynolds Averaged Navier–Stokes equations, and the renormalization group k − ε turbulent model was utilized. The numerical method was validated with existing experimental data. The results indicate that the turbine with a blade arc angle of 160 ∘ generates the maximum power coefficient, 0.2836, which is 8.37% higher than that from a conventional Savonius turbine.https://doi.org/10.1177/1687814015584247
spellingShingle Zhaoyong Mao
Wenlong Tian
Effect of the blade arc angle on the performance of a Savonius wind turbine
Advances in Mechanical Engineering
title Effect of the blade arc angle on the performance of a Savonius wind turbine
title_full Effect of the blade arc angle on the performance of a Savonius wind turbine
title_fullStr Effect of the blade arc angle on the performance of a Savonius wind turbine
title_full_unstemmed Effect of the blade arc angle on the performance of a Savonius wind turbine
title_short Effect of the blade arc angle on the performance of a Savonius wind turbine
title_sort effect of the blade arc angle on the performance of a savonius wind turbine
url https://doi.org/10.1177/1687814015584247
work_keys_str_mv AT zhaoyongmao effectofthebladearcangleontheperformanceofasavoniuswindturbine
AT wenlongtian effectofthebladearcangleontheperformanceofasavoniuswindturbine