分離流引致振動之抑制機構研究

Suppression Mechanism of Vibration Induced by Separated Flow

王安邦 ； 張彥中 ； 袁治明

《中華民國振動與噪音工程學會論文集》 1996 (1996/04) Pp. 1-12

https://doi.org/10.30028/CSSVANNUAL.199604.0001

摘要

The phenomena of vortex shedding is commonly considered as the main source which causes the flow-induced vibrations, noises, and even collapse of a body in an exteral flow. Main purpose of this project is to systematically study a new control method by a proper placement of small cylinder around a bluff body (here a circular cylinder). It has been found that the the vortex shedding can be suppressed at low Reynolds number reappear in higher Reynolds number range. In this study, we've investigated this controlling method for different cylinder sizes different Reynolds numbers, and different controlling positions and arrangements. A basic data bank of this control method were set up.

並列摘要

The phenomena of vortex shedding is commonly considered as the main source which causes the flow-induced vibrations, noises, and even collapse of a body in an exteral flow. Main purpose of this project is to systematically study a new control method by a proper placement of small cylinder around a bluff body (here a circular cylinder). It has been found that the the vortex shedding can be suppressed at low Reynolds number reappear in higher Reynolds number range. In this study, we've investigated this controlling method for different cylinder sizes different Reynolds numbers, and different controlling positions and arrangements. A basic data bank of this control method were set up.

並列關鍵字

Flow separation ； Vortex shedding ； Surpression Mechanism