| NUMERICAL SIMULATION OF FLOW-INDUCED VIBRATION ON TWO CIRCULAR CYLINDERS IN TANDEM ARRANGEMENT |
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| 作者姓名： | DENG Jian REN An-lu CHEN Wen-qu |
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| 作者单位： | Department of Mechanics, Zhejiang University, Hangzhou 310027, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China（Grant No. 10272094）. |
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| 摘 要： | Flow-induced vibration of two circular cylinders in tandem arrangement elastically mounted with a massspring-damping system was studied by solving the primitive variable Navier Stokes equations incorporating the Arbitrary Lagrangian-Eulerian （ALE） method. The convection term and dissipation term were discretized using the third-order upwind compact scheme and the fourth-order central compact scheme, respectively. The typical spacing between the cylinders is 4 diameters, which is close to the critical value. The dynamic response of the vibrations on two cylinders with two-degreeof-freedom motion is different from that of an isolated cylin der, and also different from that of a cylinder vibrating in the wake of a fixed upstream one. Different flow patterns were found in the wake, and proved to be relevant to the discontinuities observed in the response of the oscillatory cylinders.
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| 关 键 词： | 数字模拟 流动感应振动 圆形柱面 动力响应 前后安排 |
| 收稿时间： | 2004-05-24 |
NUMERICAL SIMULATION OF FLOW-INDUCED VIBRATION ON TWO CIRCULAR CYLINDERS IN TANDEM ARRANGEMENT |
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| DENG Jian REN An-lu CHEN Wen-qu.NUMERICAL SIMULATION OF FLOW-INDUCED VIBRATION ON TWO CIRCULAR CYLINDERS IN TANDEM ARRANGEMENT[J].Journal of Hydrodynamics,2005,17(6):660-666. |
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| Authors: | DENG;Jian;REN;An-lu;CHEN;Wen-qu |
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| Abstract: | Flow-induced vibration of two circular cylinders in tandem arrangement elastically mounted with a mass-spring-damping system was studied by solving the primitive variable Navier-Stokes equations incorporating the Arbitrary Lagrangian-Eulerian (ALE) method. The convection term and dissipation term were discretized using the third-order upwind compact scheme and the fourth-order central compact scheme, respectively. The typical spacing between the cylinders is 4 diameters, which is close to the critical value. The dynamic response of the vibrations on two cylinders with two-degree-of-freedom motion is different from that of an isolated cylinder, and also different from that of a cylinder vibrating in the wake of a fixed upstream one. Different flow patterns were found in the wake, and proved to be relevant to the discontinuities observed in the response of the oscillatory cylinders. |
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| Keywords: | flow by two cylinders flow-induced vibration high-order compact scheme dynamic response |
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