查詢結果分析
來源資料
相關文獻
- 三維錐形圓柱尾流控制之實驗研究
- Phase-Resolved Investigation of Vortex Shedding in Flow Past a Circular Cylinder by Using Laser Doppler Anemometry
- Preliminary Studies of Bubble Wake Dynamics Using Particle Image Analyzer
- A Study of Wake Effect on Hinged Elastic Bladed Flapping Rotor
- A Model for Predicting Vortex Motion in a Viscous Wake
- 颮線基本結構的數值模擬研究
- 錐形圓柱低雷諾數尾流之特性實驗研究
- Frequency of Unsteady Motions in Wake of a Wing
- 小振幅擺動機翼之非穩態尾流特性
- Initial Wake-Back Pressure Prediction for a Cone-Derived Waverider
頁籤選單縮合
題 名 | 三維錐形圓柱尾流控制之實驗研究=Control of the Laminar Wake after a Tapered Circular Cylinder |
---|---|
作 者 | 王安邦; 王炫証; | 書刊名 | 力學 |
卷 期 | 14:1 1998.06[民87.06] |
頁 次 | 頁23-29 |
分類號 | 440.137 |
關鍵詞 | 錐形圓柱; 尾流; 流場控制; Tapered circular cylinder; Wake flow; Flow control; |
語 文 | 中文(Chinese) |
中文摘要 | 本文主要目的在探討在低速三維錐形圓柱尾流加入控制前後特性之變化。由實驗 之結果發現:在錐形圓柱流場之適當位置加入控制圓柱後,在低雷諾數可使其尾流之馮卡門 渦街完全消失;對於無法抑制渦漩剝離之區域,控制圓柱會加強錐形圓柱尾流中之調幅頻率, 造成尾流渦漩頻率之強迫“選邊”及階梯不連續“二維化”的效應。本文證實「控制圓柱 控制法」對有錐度圓柱之渦漩剝離流場有顯著之抑制或改變效果。 |
英文摘要 | The major purpose of this paper is to study the phenomena of laminar wake after a tapered circular cylinder with/without control. It is found in this work that the Von Karman vortex street could be totally suppressed at low Reynolds number region after adding the control cylinder at proper position. For higher Reynolds number regions where the vortex shedding still exists, the wake frequency were forced to equalize that of either one end of the tapered cylinder. The wake flow becomes to be locally two-dimensionalized. The flow mechanism of this controlling method was analyzed and discussed. |
本系統中英文摘要資訊取自各篇刊載內容。