Wake suppression behind two slightly non-coplanar cylinders

Bao Qing Li; Yang Liu; Jia Ru Chu

Wake suppression behind two slightly non-coplanar cylinders

Bao Qing Li, Yang Liu, Jia Ru Chu

Research output: Journal article publication › Journal article › Academic research › peer-review

Abstract

We here have found when the two parallel cylinders are arranged slightly non-coplanar, the vortex shedding could be significantly suppressed above Reynolds number of 6000. This finding is unlike the common understanding that the Kármán vortex formation behind the structure can be manipulated when a structure located within the inherently unstable near wake of another structure, It is particularly important for flow control, since the flow-induced vibration of two parallel cylinders can be suppressed effectively with only slightly non-coplanar arrangement.

Original language	English
Pages (from-to)	1383-1387
Number of pages	5
Journal	Journal of Mechanical Science and Technology
Volume	21
Issue number	9
Publication status	Published - 1 Sept 2007

Keywords

Cylinder
Fluid-structure interaction
Passive control

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering

Cite this

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title = "Wake suppression behind two slightly non-coplanar cylinders",

abstract = "We here have found when the two parallel cylinders are arranged slightly non-coplanar, the vortex shedding could be significantly suppressed above Reynolds number of 6000. This finding is unlike the common understanding that the K{\'a}rm{\'a}n vortex formation behind the structure can be manipulated when a structure located within the inherently unstable near wake of another structure, It is particularly important for flow control, since the flow-induced vibration of two parallel cylinders can be suppressed effectively with only slightly non-coplanar arrangement.",

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AU - Liu, Yang

AU - Chu, Jia Ru

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N2 - We here have found when the two parallel cylinders are arranged slightly non-coplanar, the vortex shedding could be significantly suppressed above Reynolds number of 6000. This finding is unlike the common understanding that the Kármán vortex formation behind the structure can be manipulated when a structure located within the inherently unstable near wake of another structure, It is particularly important for flow control, since the flow-induced vibration of two parallel cylinders can be suppressed effectively with only slightly non-coplanar arrangement.

AB - We here have found when the two parallel cylinders are arranged slightly non-coplanar, the vortex shedding could be significantly suppressed above Reynolds number of 6000. This finding is unlike the common understanding that the Kármán vortex formation behind the structure can be manipulated when a structure located within the inherently unstable near wake of another structure, It is particularly important for flow control, since the flow-induced vibration of two parallel cylinders can be suppressed effectively with only slightly non-coplanar arrangement.

KW - Cylinder

KW - Fluid-structure interaction

KW - Passive control

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M3 - Journal article

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IS - 9

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Wake suppression behind two slightly non-coplanar cylinders

Abstract

Keywords

ASJC Scopus subject areas

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