Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex

We present a numerical study on the influence of the Reynolds-number on the lift enhancing effect of a leading edge vortex. Our approach is based on a combination of large-eddy simulations and the immersed boundary technique. We determine the influence of the leading edge vortex on the unsteady lift...

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Main Authors:	Zhang, Xiaoqin., Schlüter, Jörg U.
Other Authors:	School of Mechanical and Aerospace Engineering
Format:	Article
Language:	English
Published:	2013
Subjects:	DRNTU::Engineering::Mechanical engineering
Online Access:	https://hdl.handle.net/10356/106256 http://hdl.handle.net/10220/16627
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Institution:	Nanyang Technological University
Language:	English

id	sg-ntu-dr.10356-106256
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spelling	sg-ntu-dr.10356-1062562023-03-04T17:21:54Z Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex Zhang, Xiaoqin. Schlüter, Jörg U. School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering We present a numerical study on the influence of the Reynolds-number on the lift enhancing effect of a leading edge vortex. Our approach is based on a combination of large-eddy simulations and the immersed boundary technique. We determine the influence of the leading edge vortex on the unsteady lift by simulating a fast pitch-up motion of the plate and studying the lift evolution after holding the flat plate fixed at an angle of attack. Our results suggest that an optimal Reynolds-number exists that maximizes the lift of the leading edge vortex, but that the lift-to-drag ratio is largely independent of the Reynolds-number above a Reynolds-number of Rec > 2000. Published version 2013-10-18T07:23:51Z 2019-12-06T22:07:33Z 2013-10-18T07:23:51Z 2019-12-06T22:07:33Z 2012 2012 Journal Article Zhang, X., & Schlüter, J. U. (2012). Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex. Physics of fluids, 24(6), 065102-. 1070-6631 https://hdl.handle.net/10356/106256 http://hdl.handle.net/10220/16627 10.1063/1.4718322 en Physics of fluids © 2012 American Institute of Physics. This paper was published in Physics of fluids and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: [http://dx.doi.org/10.1063/1.4718322]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
language	English
topic	DRNTU::Engineering::Mechanical engineering
spellingShingle	DRNTU::Engineering::Mechanical engineering Zhang, Xiaoqin. Schlüter, Jörg U. Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex
description	We present a numerical study on the influence of the Reynolds-number on the lift enhancing effect of a leading edge vortex. Our approach is based on a combination of large-eddy simulations and the immersed boundary technique. We determine the influence of the leading edge vortex on the unsteady lift by simulating a fast pitch-up motion of the plate and studying the lift evolution after holding the flat plate fixed at an angle of attack. Our results suggest that an optimal Reynolds-number exists that maximizes the lift of the leading edge vortex, but that the lift-to-drag ratio is largely independent of the Reynolds-number above a Reynolds-number of Rec > 2000.
author2	School of Mechanical and Aerospace Engineering
author_facet	School of Mechanical and Aerospace Engineering Zhang, Xiaoqin. Schlüter, Jörg U.
format	Article
author	Zhang, Xiaoqin. Schlüter, Jörg U.
author_sort	Zhang, Xiaoqin.
title	Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex
title_short	Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex
title_full	Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex
title_fullStr	Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex
title_full_unstemmed	Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex
title_sort	numerical study of the influence of the reynolds-number on the lift created by a leading edge vortex
publishDate	2013
url	https://hdl.handle.net/10356/106256 http://hdl.handle.net/10220/16627
_version_	1759855729925160960

Numerical study of the influence of the Reynolds-number on the lift created by a leading edge vortex

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