| Numerical Simulation of Uniform Flow past an In-Line Oscillating Circular Cylinder |
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| 作者姓名： | 刘松 符松 |
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| 作者单位： | LIU Song，FU Song Department of Engineering Mechanics，Tsinghua University，Beijing 100084，China |
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| 基金项目： | Supported by the National Natural Science Foundationof China (No.1972 5 2 0 8) |
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| 摘 要： | IntroductionOscillation of cylinders in the in- line or cross- flowdirection relative to an incident flow is a commonoccurrence in industry. Understanding vortex-induced vibrations is of great importance in thedesign of a variety of offshore engineeringstructures and nuclear plant components,forexample,heat- exchangers. To understand thebehavior of this complex interactive vibrationsystem,a number of researchers have examinedthe somewhat simpler and more tractable problemof circular cylinder f…
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Numerical Simulation of Uniform Flow past an In-Line Oscillating Circular Cylinder |
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| LIU Song,FU Song.Numerical Simulation of Uniform Flow past an In-Line Oscillating Circular Cylinder[J].Tsinghua Science and Technology,2002,7(5). |
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| Authors: | LIU Song FU Song |
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| Institution: | LIU Song,FU Song Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China |
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| Abstract: | The time-dependent viscous incompressible flow around an in-line oscillating circular cylinder at Reynolds numbers of 200 and 855 was analyzed using a finite volume method. The Navier-Stokes equations were solved on a moving grid system using a time-dependent coordinate transformation. Several numerical schemes were tested to investigate the vortex-shedding characteristics and the effects of Reynolds number and other dimensionless parameters such as the reduced amplitude and the reduced frequency. The numerical results indicate that several types of vortex shedding modes depend on the reduced frequency and the reduced amplitude due to synchronization or lock-on. |
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| Keywords: | circular cylinder in-line oscillating vortex shedding reduced frequency |
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