Numerical Computation of the Flow Around Two Square Cylinders Arranged Side by Side

Chen Suqin; Gu Ming; Huang Ziping

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Chen Suqin, Gu Ming, Huang Ziping. Numerical Computation of the Flow Around Two Square Cylinders Arranged Side by Side[J]. Applied Mathematics and Mechanics, 2000, 21(2): 131-146.

Citation:

Chen Suqin, Gu Ming, Huang Ziping. Numerical Computation of the Flow Around Two Square Cylinders Arranged Side by Side[J]. Applied Mathematics and Mechanics, 2000, 21(2): 131-146.

Citation:

Chen Suqin, Gu Ming, Huang Ziping. Numerical Computation of the Flow Around Two Square Cylinders Arranged Side by Side[J]. Applied Mathematics and Mechanics, 2000, 21(2): 131-146.

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Numerical Computation of the Flow Around Two Square Cylinders Arranged Side by Side

1.
Applied Mathematical Department, Tongji University, Shanghai 200092, P. R. China;
2.
Bridge Engineering Department, Tongji University, Shanghai 200092, P. R. China

Received Date: 1998-11-27
Rev Recd Date: 1999-08-18
Publish Date: 2000-02-15

Abstract

Abstract

The numerical method is used to calculate the flow around two square cylinders arranged side by side and the mean and fluctuating aerodynamic forces,Strouhal numbers and power spectrum of lift force and drag force are obtained.An improved MAC method proposed by Chen Suqin et al., which uses three order upwind scheme to discretize the convection term and uses multigrid method to solve the Poisson equation for pressure is applied to simulate the flow around two square cylinders arranged side by side.Results show that the interference characteristic of two square cylinders arranged side by side is completely different with the different spacing ratio,when the spacing ratio is smaller than a certain critical value,the gap flow between two cylinders is biased to one side in a stable or unstable manner.
- wake interference,
- square cylinders in side-by-side arrangement,
- N-S equations,
- MAC method

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References(7)

References

[1]	Zdravkovich M M.Review of flow interference between two circular cylinders in various arrangements[J].Trans ASME Journal of Fluids Engineering Ser Ⅰ,1977,99(4):618～633.
[2]	Zdravkovich M M.Review of interference-induced oscillations in flow past two circular cylinders in various arrangements[J].J Wind Eng Ind Aerodyn,1988,28:183～200.
[3]	Ohya Y,Okajima A,Hayashi M.Wake interference and vortex shedding[A].In:N P Cheremisinoff Ed.Encyclopedia of Fluid Mechanics[C].Ch 10.Houston Tx:Gulf Publishing,1989.
[4]	Kim T,Flynn M R.Numerical simulation of air flow around multiple objects using the vortex method[J].J Wind Eng Ind Aerodyn,1995,56(issue 2-3):213～234.
[5]	Hiromasa Kawai,Kiyoshi Fujinami.Numerical simulation of flow around square prisms in tandem arrangements[A] ．In:Prem Krishma Ed,9th ICWE [C].New Delhi,India:Wiley Eastern Limited,1995.
[6]	Chen Suqin,Gu Ming,Huang Ziping.Computation of vortex shedding flow past 2D square cylinder using improved MAC (marker cell) method[J].应用基础与工程科学学报,1999,7(2):126～131.
[7]	冈岛厚,杉谷肾一郎,沟田武人.并列2长方形断面柱まわリの流れ[J].日本机械学会论文集,1985,51(472):3877～3886.