Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study

The aim of this paper presents an unsteady numerical investigation of a novel biologically inspired vertical axis wind turbine for offshore regions of Malaysia. The proposed blade shape is a result of hybrid design inspired by maple seed and epilobium hirsutum. The simulation was conducted in 2D u...

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Main Authors:	Ashwindran, S. N., Azizuddin, Abd Aziz, Oumer, A. N.
Format:	Article
Language:	English
Published:	Universiti Malaysia Pahang 2019
Subjects:	T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/25615/ http://umpir.ump.edu.my/id/eprint/25615/ http://umpir.ump.edu.my/id/eprint/25615/ http://umpir.ump.edu.my/id/eprint/25615/1/Unsteady%20computational%20study%20of%20novel%20biologically%20inspired%20offshore.pdf

id	ump-25615
recordtype	eprints
spelling	ump-256152019-09-03T03:07:30Z http://umpir.ump.edu.my/id/eprint/25615/ Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study Ashwindran, S. N. Azizuddin, Abd Aziz Oumer, A. N. T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery The aim of this paper presents an unsteady numerical investigation of a novel biologically inspired vertical axis wind turbine for offshore regions of Malaysia. The proposed blade shape is a result of hybrid design inspired by maple seed and epilobium hirsutum. The simulation was conducted in 2D using the sliding mesh technique with non-conformal mesh spatial discretisation via FLUENT 16.2. A grid sensitivity study on mesh density and turbulent transport model indicated that fine mesh and medium converged well with trivial difference. SST and k-ω model presented stable behaviour and indicated good agreement. The proposed wind turbine was simulated at five different moderate tip speed ratios under the influence of freestream velocity U∞=8 m/s. The highest moment coefficient is generated at tip speed ratio λ=1.3, which is Cm=0.1886 with a stable positive moment coefficient after 480°. The proposed turbine responded well at λ=1.3 and λ=1.7 with power coefficient result of Cp=0.245 and Cp=0.262 respectively. The effect of wake and vorticity on the turbine at subjected tip speed ratios is studied. Wake regions induced by the leading edge of the aerofoil impacted the performance of the following blade. Due to the less wake effect trailed by the leading edge at λ=1.3, it generates higher moment than λ=1.7. Universiti Malaysia Pahang 2019-06 Article PeerReviewed pdf en cc_by_nc_4 http://umpir.ump.edu.my/id/eprint/25615/1/Unsteady%20computational%20study%20of%20novel%20biologically%20inspired%20offshore.pdf Ashwindran, S. N. and Azizuddin, Abd Aziz and Oumer, A. N. (2019) Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study. International Journal of Automotive and Mechanical Engineering (IJAME), 16 (2). pp. 6753-6772. ISSN 2229-8649 (Print); 2180-1606 (Online) http://journal.ump.edu.my/ijame/article/view/1907/423 https://doi.org/10.15282/ijame.16.2.2019.21.0508
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery Ashwindran, S. N. Azizuddin, Abd Aziz Oumer, A. N. Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study
description	The aim of this paper presents an unsteady numerical investigation of a novel biologically inspired vertical axis wind turbine for offshore regions of Malaysia. The proposed blade shape is a result of hybrid design inspired by maple seed and epilobium hirsutum. The simulation was conducted in 2D using the sliding mesh technique with non-conformal mesh spatial discretisation via FLUENT 16.2. A grid sensitivity study on mesh density and turbulent transport model indicated that fine mesh and medium converged well with trivial difference. SST and k-ω model presented stable behaviour and indicated good agreement. The proposed wind turbine was simulated at five different moderate tip speed ratios under the influence of freestream velocity U∞=8 m/s. The highest moment coefficient is generated at tip speed ratio λ=1.3, which is Cm=0.1886 with a stable positive moment coefficient after 480°. The proposed turbine responded well at λ=1.3 and λ=1.7 with power coefficient result of Cp=0.245 and Cp=0.262 respectively. The effect of wake and vorticity on the turbine at subjected tip speed ratios is studied. Wake regions induced by the leading edge of the aerofoil impacted the performance of the following blade. Due to the less wake effect trailed by the leading edge at λ=1.3, it generates higher moment than λ=1.7.
format	Article
author	Ashwindran, S. N. Azizuddin, Abd Aziz Oumer, A. N.
author_facet	Ashwindran, S. N. Azizuddin, Abd Aziz Oumer, A. N.
author_sort	Ashwindran, S. N.
title	Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study
title_short	Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study
title_full	Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study
title_fullStr	Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study
title_full_unstemmed	Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study
title_sort	unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study
publisher	Universiti Malaysia Pahang
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/25615/ http://umpir.ump.edu.my/id/eprint/25615/ http://umpir.ump.edu.my/id/eprint/25615/ http://umpir.ump.edu.my/id/eprint/25615/1/Unsteady%20computational%20study%20of%20novel%20biologically%20inspired%20offshore.pdf
first_indexed	2023-09-18T22:39:26Z
last_indexed	2023-09-18T22:39:26Z
_version_	1777416815334391808

Unsteady computational study of novel biologically inspired offshore vertical axis wind turbine at different tip speed ratios: a two-dimensional study

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