한국전산유체공학회:학술대회논문집
- 2003.10a
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- Pages.164-165
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- 2003
Comparison of the Side-Jets and Rear-Jet Effects on the Controllability of Flow-Induced Vibrations
- HONG Jun-Ho (Korea Institute of Industrial Technology) ;
- ARAI Norio (Department of Mechanical Systems Engineering)
- Published : 2003.10.01
Abstract
The problem of a bluff body oscillating in a fluid flow has been receiving a great deal of attention. When a bluff body is placed in a flow, it experiences fluctuating hydraulic forces in both transverse and stream-wise directions. It is caused by the formation of vortices behind the body, which could cause large damages of structures. It is called the flow-induced vibrations. In this article, it is investigated the effects of that side-jets and rear-jet, which is applied to control the vortex shedding. The rear-jet is available to control the flow-induced vibrations according as the body shapes and the velocity of fluid flow in which the galloping phenomena is not appeared.