Stepwise increase in the Strouhal number for flows around flat plates

Shigehira Ozono, Yuji Ohya, Yasuharu Nakamura, Ryuzo Nakayama

研究成果: ジャーナルへの寄稿記事

13 引用 (Scopus)

抄録

The unsteady viscous flow around flat plates with square leading and trailing edges is investigated by using a finite difference computation of the incompressible two‐dimensional Navier‐Stokes equations. The chord‐to‐thickness ratio of a plate ranges from d/h=3 to 9, with a Reynolds number based on the plate's thickness equal to 103. The numerical analysis confirms the finding obtained in our previous experiment that vortex shedding from flat plates with square leading and trailing edges is caused by the impinging shear layer instability. The Strouhal number based on the plate's chord increases stepwise with increasing d/h in accordance with the experiment. The numerical analysis also gives some crucial information on the complicated vortical flow occurring near the trailing edge. Finally, the mechanism of the impinging shear layer instability is discussed in the light of the experimental and numerical findings.

元の言語英語
ページ(範囲)1025-1036
ページ数12
ジャーナルInternational Journal for Numerical Methods in Fluids
15
発行部数9
DOI
出版物ステータス出版済み - 1 1 1992

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Strouhal number
Flat Plate
Numerical analysis
Numerical Analysis
Vortex shedding
Viscous flow
Vortex Shedding
Reynolds number
Experiments
Viscous Flow
Unsteady Flow
Chord or secant line
Experiment
Finite Difference
Navier-Stokes Equations
Range of data

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Applied Mathematics

これを引用

Stepwise increase in the Strouhal number for flows around flat plates. / Ozono, Shigehira; Ohya, Yuji; Nakamura, Yasuharu; Nakayama, Ryuzo.

:: International Journal for Numerical Methods in Fluids, 巻 15, 番号 9, 01.01.1992, p. 1025-1036.

研究成果: ジャーナルへの寄稿記事

Ozono, Shigehira ; Ohya, Yuji ; Nakamura, Yasuharu ; Nakayama, Ryuzo. / Stepwise increase in the Strouhal number for flows around flat plates. :: International Journal for Numerical Methods in Fluids. 1992 ; 巻 15, 番号 9. pp. 1025-1036.
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