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Study of √2 conjecture in the construction of drag induced wind turbine blade morphology

In wind engineering, the morphology of the turbine blade system governs the effectiveness in harvesting wind energy. The flow field response is the result of the turbine blade shape interaction with flow. Hence, mathematically interpreting the shape of the blade will help to understand the principal...

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Main Authors: Naidu Sanderasagran, Ashwindran, Abd Aziz, Azizuddin, Nurye Oumer, Ahmed
格式: Article
語言:English
出版: Novel Carbon Resource Sciences 2021
主題:
T Technology (General)
TJ Mechanical engineering and machinery
在線閱讀:http://umpir.ump.edu.my/id/eprint/32245/1/Evergreen.pdf
http://umpir.ump.edu.my/id/eprint/32245/
http://www.tj.kyushu-u.ac.jp/evergreen/contents/EG2021-8_3_content/pdf/574-585.pdf
https://doi.org/10.5109/4491649
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spelling my.ump.umpir.322452021-10-21T06:16:17Z http://umpir.ump.edu.my/id/eprint/32245/ Study of √2 conjecture in the construction of drag induced wind turbine blade morphology Naidu Sanderasagran, Ashwindran Abd Aziz, Azizuddin Nurye Oumer, Ahmed T Technology (General) TJ Mechanical engineering and machinery In wind engineering, the morphology of the turbine blade system governs the effectiveness in harvesting wind energy. The flow field response is the result of the turbine blade shape interaction with flow. Hence, mathematically interpreting the shape of the blade will help to understand the principals and properties of the utilized geometry for the blade construction. In this study, semicircle geometry of Savonius wind turbine blade is mathematically analyzed in order to understand its fundamental building block. We provide discussion on √2 conjecture found in the construction of circles, Fibonacci and Pythagoras spiral in relations to √2, √2 + 1 and √2 + 2. It is found that √2 conjecture can be utilized in determining the geometrical properties of circle and spiral. We also performed thorough assessment of the proposed conjecture to prove its robustness and reliability. The proposed conjecture is adapted to construct the blade morphology of drag induced wind turbine. CFD analysis is carried out to investigate the aerodynamic properties namely moment coefficient (Cm) of the constructed wind turbine shape via the proposed conjecture. Results shows that the proposed shape constructed based on the conjecture has improved Cm by 7.2 % at λ = 0.59 and 4 % at λ = 0.94 compared to conventional SWT Novel Carbon Resource Sciences 2021-09 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/32245/1/Evergreen.pdf Naidu Sanderasagran, Ashwindran and Abd Aziz, Azizuddin and Nurye Oumer, Ahmed (2021) Study of √2 conjecture in the construction of drag induced wind turbine blade morphology. Evergreen, 8 (3). pp. 574-585. ISSN 2189-0420. (Published) http://www.tj.kyushu-u.ac.jp/evergreen/contents/EG2021-8_3_content/pdf/574-585.pdf https://doi.org/10.5109/4491649
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic T Technology (General)
TJ Mechanical engineering and machinery
spellingShingle T Technology (General)
TJ Mechanical engineering and machinery
Naidu Sanderasagran, Ashwindran
Abd Aziz, Azizuddin
Nurye Oumer, Ahmed
Study of √2 conjecture in the construction of drag induced wind turbine blade morphology
description In wind engineering, the morphology of the turbine blade system governs the effectiveness in harvesting wind energy. The flow field response is the result of the turbine blade shape interaction with flow. Hence, mathematically interpreting the shape of the blade will help to understand the principals and properties of the utilized geometry for the blade construction. In this study, semicircle geometry of Savonius wind turbine blade is mathematically analyzed in order to understand its fundamental building block. We provide discussion on √2 conjecture found in the construction of circles, Fibonacci and Pythagoras spiral in relations to √2, √2 + 1 and √2 + 2. It is found that √2 conjecture can be utilized in determining the geometrical properties of circle and spiral. We also performed thorough assessment of the proposed conjecture to prove its robustness and reliability. The proposed conjecture is adapted to construct the blade morphology of drag induced wind turbine. CFD analysis is carried out to investigate the aerodynamic properties namely moment coefficient (Cm) of the constructed wind turbine shape via the proposed conjecture. Results shows that the proposed shape constructed based on the conjecture has improved Cm by 7.2 % at λ = 0.59 and 4 % at λ = 0.94 compared to conventional SWT
format Article
author Naidu Sanderasagran, Ashwindran
Abd Aziz, Azizuddin
Nurye Oumer, Ahmed
author_facet Naidu Sanderasagran, Ashwindran
Abd Aziz, Azizuddin
Nurye Oumer, Ahmed
author_sort Naidu Sanderasagran, Ashwindran
title Study of √2 conjecture in the construction of drag induced wind turbine blade morphology
title_short Study of √2 conjecture in the construction of drag induced wind turbine blade morphology
title_full Study of √2 conjecture in the construction of drag induced wind turbine blade morphology
title_fullStr Study of √2 conjecture in the construction of drag induced wind turbine blade morphology
title_full_unstemmed Study of √2 conjecture in the construction of drag induced wind turbine blade morphology
title_sort study of √2 conjecture in the construction of drag induced wind turbine blade morphology
publisher Novel Carbon Resource Sciences
publishDate 2021
url http://umpir.ump.edu.my/id/eprint/32245/1/Evergreen.pdf
http://umpir.ump.edu.my/id/eprint/32245/
http://www.tj.kyushu-u.ac.jp/evergreen/contents/EG2021-8_3_content/pdf/574-585.pdf
https://doi.org/10.5109/4491649
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score 13.251813

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