Flow-induced Vibration Characteristics of Two Circular Cylinders in a Side-by-Side Arrangement and the Vibration Mechanism

被引：0

作者：

Kim, Sang-Il ^{[1
]}

Lee, Seung-Chul ^{[2
]}

机构：

[1] Kangwon Natl Univ, Dept Mech Engn, Chunchon, South Korea

[2] Kangwon Natl Univ, Dept Fire Protect Engn, Chunchon, South Korea

来源：

TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B | 2012年 / 36卷 / 01期

关键词：

Circular Cylinder; Flow-Induced Vibration; Side-by-Side Arrangement; Visualization; Switching Flow;

D O I：

10.3795/KSME-B.2012.36.1.055

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This experimental study investigated the characteristics of flow-induced vibration of two elastically supported circular cylinders in a side-by-side arrangement. In particular, the characteristics of the flow-induced vibration of the two cylinders are investigated by changing the flow speed at each spacing ratio L/D (L is the space between two cylinders and D is the diameter of the cylinder). To clarify the mechanism generating the flow-induced vibration of the cylinders, the flow patterns around the two vibrating cylinders are also investigated using a flow visualization test that reproduces the flow-induced vibration of the cylinders with a forced vibration apparatus. As a result, it is clarified that the flow-induced vibration characteristics of the two cylinders arranged side-by-side switch among four patterns as the flow between the two cylinders is switched. Among the three arrangements considered (tandem, staggered, and side-by-side), the arrangement that generates flow-induced vibration of the two cylinders most easily is the side-by-side arrangement.

引用

页码：55 / 60

页数：6

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