CFD studies on triangular micro-vortex generators in flow control

In the present study, the flow characteristics of the commercially used S809 wind turbine airfoil controlled with triangular counter-rotating micro-vortex generators at stall angle of attack of 15 degrees and 10 m/s, 15 m/s and 20 m/s (speed range used in the wind turbine applications) had been comp...

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Main Authors:	Yashodhar, V., Humrutha, G., Kaushik, M., Khan, Sher Afghan
Format:	Article
Language:	English English
Published:	IOP Publishing 2017
Subjects:	TL Motor vehicles. Aeronautics. Astronautics
Online Access:	http://irep.iium.edu.my/56871/ http://irep.iium.edu.my/56871/ http://irep.iium.edu.my/56871/ http://irep.iium.edu.my/56871/1/Yashodhar_2017_IOP_Conf._Ser.%253A_Mater._Sci._Eng._184_012007.pdf http://irep.iium.edu.my/56871/7/56871_CFD%20Studies%20on%20Triangular%20Micro-Vortex_SCOPUS.pdf

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recordtype	eprints
spelling	iium-568712017-06-22T04:18:09Z http://irep.iium.edu.my/56871/ CFD studies on triangular micro-vortex generators in flow control Yashodhar, V. Humrutha, G. Kaushik, M. Khan, Sher Afghan TL Motor vehicles. Aeronautics. Astronautics In the present study, the flow characteristics of the commercially used S809 wind turbine airfoil controlled with triangular counter-rotating micro-vortex generators at stall angle of attack of 15 degrees and 10 m/s, 15 m/s and 20 m/s (speed range used in the wind turbine applications) had been computationally investigated. In addition to the controlled airfoil, an uncontrolled airfoil was also studied for the comparison. The modelling and analysis had been carried out using incompressible, Reynolds Averaged Navier Stokes equation using Spalart-Allmaras one equation turbulence model. The numerical computations were performed with SIMPLE algorithm. The velocity profiles at different locations on the suction surface were plotted for both uncontrolled and controlled airfoils. The shear stresses exerted on the upper surface of the airfoil in both the configurations were also compared. It is found that the controlled airfoil, the shear stress distribution was greatly increased near to trailing edge of the airfoil revealing the superiority of vortex generators in increasing the efficiency of wind turbine by delaying boundary layer separation. The qualitative results of flow visualization in the spanwise direction also support the quantitative findings of velocity profiles and shear stress distribution. IOP Publishing 2017-04 Article PeerReviewed application/pdf en http://irep.iium.edu.my/56871/1/Yashodhar_2017_IOP_Conf._Ser.%253A_Mater._Sci._Eng._184_012007.pdf application/pdf en http://irep.iium.edu.my/56871/7/56871_CFD%20Studies%20on%20Triangular%20Micro-Vortex_SCOPUS.pdf Yashodhar, V. and Humrutha, G. and Kaushik, M. and Khan, Sher Afghan (2017) CFD studies on triangular micro-vortex generators in flow control. IOP Conference Series: Materials Science and Engineering, 184 (1). 012007-1. ISSN 1757-8981 http://iopscience.iop.org/article/10.1088/1757-899X/184/1/012007 10.1088/1757-899X/184/1/012007
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TL Motor vehicles. Aeronautics. Astronautics
spellingShingle	TL Motor vehicles. Aeronautics. Astronautics Yashodhar, V. Humrutha, G. Kaushik, M. Khan, Sher Afghan CFD studies on triangular micro-vortex generators in flow control
description	In the present study, the flow characteristics of the commercially used S809 wind turbine airfoil controlled with triangular counter-rotating micro-vortex generators at stall angle of attack of 15 degrees and 10 m/s, 15 m/s and 20 m/s (speed range used in the wind turbine applications) had been computationally investigated. In addition to the controlled airfoil, an uncontrolled airfoil was also studied for the comparison. The modelling and analysis had been carried out using incompressible, Reynolds Averaged Navier Stokes equation using Spalart-Allmaras one equation turbulence model. The numerical computations were performed with SIMPLE algorithm. The velocity profiles at different locations on the suction surface were plotted for both uncontrolled and controlled airfoils. The shear stresses exerted on the upper surface of the airfoil in both the configurations were also compared. It is found that the controlled airfoil, the shear stress distribution was greatly increased near to trailing edge of the airfoil revealing the superiority of vortex generators in increasing the efficiency of wind turbine by delaying boundary layer separation. The qualitative results of flow visualization in the spanwise direction also support the quantitative findings of velocity profiles and shear stress distribution.
format	Article
author	Yashodhar, V. Humrutha, G. Kaushik, M. Khan, Sher Afghan
author_facet	Yashodhar, V. Humrutha, G. Kaushik, M. Khan, Sher Afghan
author_sort	Yashodhar, V.
title	CFD studies on triangular micro-vortex generators in flow control
title_short	CFD studies on triangular micro-vortex generators in flow control
title_full	CFD studies on triangular micro-vortex generators in flow control
title_fullStr	CFD studies on triangular micro-vortex generators in flow control
title_full_unstemmed	CFD studies on triangular micro-vortex generators in flow control
title_sort	cfd studies on triangular micro-vortex generators in flow control
publisher	IOP Publishing
publishDate	2017
url	http://irep.iium.edu.my/56871/ http://irep.iium.edu.my/56871/ http://irep.iium.edu.my/56871/ http://irep.iium.edu.my/56871/1/Yashodhar_2017_IOP_Conf._Ser.%253A_Mater._Sci._Eng._184_012007.pdf http://irep.iium.edu.my/56871/7/56871_CFD%20Studies%20on%20Triangular%20Micro-Vortex_SCOPUS.pdf
first_indexed	2023-09-18T21:20:18Z
last_indexed	2023-09-18T21:20:18Z
_version_	1777411836457517056

CFD studies on triangular micro-vortex generators in flow control

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