Experimental and numerical analysis of vortex shedding from elongated rectangular cylinders at low Reynolds numbers 200-103

Y. Nakamura, Y. Ohya, S. Ozono, R. Nakayama

研究成果: ジャーナルへの寄稿記事

41 引用 (Scopus)

抄録

Experimental and numerical investigation on vortex shedding from elongated rectangular cylinders at low Reynolds numbers 200-103 was performed in this paper. The experiment was made in a low speed wind tunnel, and the numerical analysis was based on the finite difference method applicable to the 2D Navier-Stokes equations. The side ratio of rectangular cylinders tested ranged from 3 to 16 in the experiment, and 3 to 10 in the numerical computation. Good agreement was obtained between experiment and numerical analysis of the Strouhal number. With increasing Reynolds number, transition was observed in the type of vortex shedding, i.e., from the Kármán type shedding to the impinging-shear-layer instability, where a single separated shear layer can be unstable in the presence of a sharp trailing edge corner. The transitional Reynolds number was roughly equal to 300.

元の言語英語
ページ(範囲)301-308
ページ数8
ジャーナルJournal of Wind Engineering and Industrial Aerodynamics
65
発行部数1-3
DOI
出版物ステータス出版済み - 1 1 1996

Fingerprint

Vortex shedding
Numerical analysis
Reynolds number
Strouhal number
Experiments
Finite difference method
Navier Stokes equations
Wind tunnels

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Renewable Energy, Sustainability and the Environment
  • Mechanical Engineering

これを引用

Experimental and numerical analysis of vortex shedding from elongated rectangular cylinders at low Reynolds numbers 200-103 . / Nakamura, Y.; Ohya, Y.; Ozono, S.; Nakayama, R.

:: Journal of Wind Engineering and Industrial Aerodynamics, 巻 65, 番号 1-3, 01.01.1996, p. 301-308.

研究成果: ジャーナルへの寄稿記事

@article{14f948e250cd4e629d24a6c1f8712e32,
title = "Experimental and numerical analysis of vortex shedding from elongated rectangular cylinders at low Reynolds numbers 200-103",
abstract = "Experimental and numerical investigation on vortex shedding from elongated rectangular cylinders at low Reynolds numbers 200-103 was performed in this paper. The experiment was made in a low speed wind tunnel, and the numerical analysis was based on the finite difference method applicable to the 2D Navier-Stokes equations. The side ratio of rectangular cylinders tested ranged from 3 to 16 in the experiment, and 3 to 10 in the numerical computation. Good agreement was obtained between experiment and numerical analysis of the Strouhal number. With increasing Reynolds number, transition was observed in the type of vortex shedding, i.e., from the K{\'a}rm{\'a}n type shedding to the impinging-shear-layer instability, where a single separated shear layer can be unstable in the presence of a sharp trailing edge corner. The transitional Reynolds number was roughly equal to 300.",
author = "Y. Nakamura and Y. Ohya and S. Ozono and R. Nakayama",
year = "1996",
month = "1",
day = "1",
doi = "10.1016/S0167-6105(97)00048-2",
language = "English",
volume = "65",
pages = "301--308",
journal = "Journal of Industrial Aerodynamics",
issn = "0167-6105",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Experimental and numerical analysis of vortex shedding from elongated rectangular cylinders at low Reynolds numbers 200-103

AU - Nakamura, Y.

AU - Ohya, Y.

AU - Ozono, S.

AU - Nakayama, R.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - Experimental and numerical investigation on vortex shedding from elongated rectangular cylinders at low Reynolds numbers 200-103 was performed in this paper. The experiment was made in a low speed wind tunnel, and the numerical analysis was based on the finite difference method applicable to the 2D Navier-Stokes equations. The side ratio of rectangular cylinders tested ranged from 3 to 16 in the experiment, and 3 to 10 in the numerical computation. Good agreement was obtained between experiment and numerical analysis of the Strouhal number. With increasing Reynolds number, transition was observed in the type of vortex shedding, i.e., from the Kármán type shedding to the impinging-shear-layer instability, where a single separated shear layer can be unstable in the presence of a sharp trailing edge corner. The transitional Reynolds number was roughly equal to 300.

AB - Experimental and numerical investigation on vortex shedding from elongated rectangular cylinders at low Reynolds numbers 200-103 was performed in this paper. The experiment was made in a low speed wind tunnel, and the numerical analysis was based on the finite difference method applicable to the 2D Navier-Stokes equations. The side ratio of rectangular cylinders tested ranged from 3 to 16 in the experiment, and 3 to 10 in the numerical computation. Good agreement was obtained between experiment and numerical analysis of the Strouhal number. With increasing Reynolds number, transition was observed in the type of vortex shedding, i.e., from the Kármán type shedding to the impinging-shear-layer instability, where a single separated shear layer can be unstable in the presence of a sharp trailing edge corner. The transitional Reynolds number was roughly equal to 300.

UR - http://www.scopus.com/inward/record.url?scp=0030322431&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030322431&partnerID=8YFLogxK

U2 - 10.1016/S0167-6105(97)00048-2

DO - 10.1016/S0167-6105(97)00048-2

M3 - Article

AN - SCOPUS:0030322431

VL - 65

SP - 301

EP - 308

JO - Journal of Industrial Aerodynamics

JF - Journal of Industrial Aerodynamics

SN - 0167-6105

IS - 1-3

ER -