| 题名 | The effect of damping on the vortex-induced vibration of a rectangular prism |
| 作者 | |
| 通讯作者 | Zou，Guang |
| 发表日期 | 2024-02-01
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| DOI | |
| 发表期刊 | |
| ISSN | 1070-6631
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| EISSN | 1089-7666
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| 卷号 | 36期号:2 |
| 摘要 | In this work, the vortex-induced vibration of a rectangular prism with a side ratio of 4 is numerically investigated using a two-dimensional spectral-element method for several structural damping. The prism is constrained to vibrate only in the cross-flow direction. The vibration is governed by an impinging leading-edge vortex instability, while the trailing-edge vortex between two leading-edge vortices also contributes to the amplitude. The results show that increasing the damping reduces not only the displacement amplitude but also the range of lock-in. It is found that the phase difference between the lift force and motion plays an important role that is related to the added mass. After suppressing the trailing-edge vortex using a splitter plate, the vibration amplitude varies almost linearly with the phase difference. In addition, the essence of the lock-in reduction is that there is a critical phase difference above which lock-in disappears for a certain reduced velocity and the critical phase difference changes linearly with the reduced velocity. A new semi-empirical model based on the phase difference is proposed to predict the vibration amplitude and lock-in regime under different damping values. Rectangular prism experiments with two different side ratios are used to verify the effectiveness of the model. |
| 相关链接 | [Scopus记录] |
| 收录类别 | |
| 语种 | 英语
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| 学校署名 | 通讯
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| ESI学科分类 | PHYSICS
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| Scopus记录号 | 2-s2.0-85185004459
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| 来源库 | Scopus
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| 引用统计 |
被引频次[WOS]：2
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| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/715483 |
| 专题 | 工学院_海洋科学与工程系 |
| 作者单位 | 1.School of Ocean Engineering,Jiangsu Ocean University,Lianyungang,China 2.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,China |
| 通讯作者单位 | 海洋科学与工程系 |
| 推荐引用方式 GB/T 7714 |
Tang，Zhaolie,Zou，Guang,Li，Linsheng. The effect of damping on the vortex-induced vibration of a rectangular prism[J]. Physics of Fluids,2024,36(2).
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| APA |
Tang，Zhaolie,Zou，Guang,&Li，Linsheng.(2024).The effect of damping on the vortex-induced vibration of a rectangular prism.Physics of Fluids,36(2).
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| MLA |
Tang，Zhaolie,et al."The effect of damping on the vortex-induced vibration of a rectangular prism".Physics of Fluids 36.2(2024).
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| 条目包含的文件 | 条目无相关文件。 | |||||
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