Numerical assessment of coanda effect for wind turbine application

Various methods of flow control for enhanced aerodynamic performance have been developed and applied, such as continuous, synthetic and pulsed jets, compliant surface, vortex-cell and the like, to dramatically alter the behavior of aerodynamic components such as airfoils, wings, and bodies. In an e...

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Main Author:	Abdul Hamid, Mohd Faisal
Format:	Thesis
Language:	English
Published:	2012
Subjects:	Wind turbines - Aerodynamics Coanda effect
Online Access:	http://psasir.upm.edu.my/id/eprint/38543/1/FK%202012%2014R.pdf
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id	my-upm-ir.38543
record_format	uketd_dc
spelling	my-upm-ir.385432015-04-27T04:15:51Z Numerical assessment of coanda effect for wind turbine application 2012-06 Abdul Hamid, Mohd Faisal Various methods of flow control for enhanced aerodynamic performance have been developed and applied, such as continuous, synthetic and pulsed jets, compliant surface, vortex-cell and the like, to dramatically alter the behavior of aerodynamic components such as airfoils, wings, and bodies. In an effort to optimize aerodynamic performance of wind turbine, the use of the Coandă effect, by blowing high velocity jet tangential over a highly curved surface (such as a rounded TE) to increase the circulation and lift has gained renewed interest, in particular with the progress of CFD. The present work review the influences, effectiveness and configurations of Coandă-jet fitted aerodynamic surface, in particular S809 airfoil, to improve its lift augmentation and lift over drag ratio, with a view on its incorporation in the design of wind turbine. For this purpose, a simple two-dimensional CFD modeling using k– omega and k – epsilon turbulence models is utilized to reveal the key elements that could exhibit the desired performance criteria for a comprehensive series of configurations. A parametric study indicates that Coandă configured airfoil can only be effective in a certain range of the TE radius, the jet thickness and the momentum jet size; the location of the jet was found to be effective when it is placed close to the TE. The results are compared with existing experimental data for benchmarking. Three-dimensional configurations are synthesized using certain acceptable assumptions. A trade-off study on the S809 Coandă configured airfoil is needed to judge the optimum configuration of Coandă-jet fitted wind turbine design. Wind turbines - Aerodynamics Coanda effect 2012-06 Thesis http://psasir.upm.edu.my/id/eprint/38543/ http://psasir.upm.edu.my/id/eprint/38543/1/FK%202012%2014R.pdf application/pdf en public masters Universiti Putra Malaysia Wind turbines - Aerodynamics Coanda effect
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Wind turbines - Aerodynamics Coanda effect
spellingShingle	Wind turbines - Aerodynamics Coanda effect Abdul Hamid, Mohd Faisal Numerical assessment of coanda effect for wind turbine application
description	Various methods of flow control for enhanced aerodynamic performance have been developed and applied, such as continuous, synthetic and pulsed jets, compliant surface, vortex-cell and the like, to dramatically alter the behavior of aerodynamic components such as airfoils, wings, and bodies. In an effort to optimize aerodynamic performance of wind turbine, the use of the Coandă effect, by blowing high velocity jet tangential over a highly curved surface (such as a rounded TE) to increase the circulation and lift has gained renewed interest, in particular with the progress of CFD. The present work review the influences, effectiveness and configurations of Coandă-jet fitted aerodynamic surface, in particular S809 airfoil, to improve its lift augmentation and lift over drag ratio, with a view on its incorporation in the design of wind turbine. For this purpose, a simple two-dimensional CFD modeling using k– omega and k – epsilon turbulence models is utilized to reveal the key elements that could exhibit the desired performance criteria for a comprehensive series of configurations. A parametric study indicates that Coandă configured airfoil can only be effective in a certain range of the TE radius, the jet thickness and the momentum jet size; the location of the jet was found to be effective when it is placed close to the TE. The results are compared with existing experimental data for benchmarking. Three-dimensional configurations are synthesized using certain acceptable assumptions. A trade-off study on the S809 Coandă configured airfoil is needed to judge the optimum configuration of Coandă-jet fitted wind turbine design.
format	Thesis
qualification_level	Master's degree
author	Abdul Hamid, Mohd Faisal
author_facet	Abdul Hamid, Mohd Faisal
author_sort	Abdul Hamid, Mohd Faisal
title	Numerical assessment of coanda effect for wind turbine application
title_short	Numerical assessment of coanda effect for wind turbine application
title_full	Numerical assessment of coanda effect for wind turbine application
title_fullStr	Numerical assessment of coanda effect for wind turbine application
title_full_unstemmed	Numerical assessment of coanda effect for wind turbine application
title_sort	numerical assessment of coanda effect for wind turbine application
granting_institution	Universiti Putra Malaysia
publishDate	2012
url	http://psasir.upm.edu.my/id/eprint/38543/1/FK%202012%2014R.pdf
_version_	1747811731206307840

Numerical assessment of coanda effect for wind turbine application

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