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頁籤選單縮合
題名 | 飛行體之主翼與水平尾翼渦流干擾流場研究=The Investigation of Aerodynamic Interference of the Main Wing and Horizontal Tail of an Airplane |
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作者 | 劉明山; 楊富森; Liu, Min-shan; Yang, Fuh-sen; |
期刊 | 逢甲學報 |
出版日期 | 19960600 |
卷期 | 29 1996.06[民85.06] |
頁次 | 頁177-197 |
分類號 | 447.63 |
語文 | chi |
關鍵詞 | 氣動干擾; 渦流; 水桌實驗; Aerodynamic interference; Vortex; Water table; |
中文摘要 | 本文係以水桌實驗來研究流體連續通過前後大小不同機翼(例如主翼與水平尾翼) 所產生之流場干擾行為。並利用此項結果對現代戰機主翼與尾翼的排列情形做分析比較與驗 證,且對 IDF 戰機尾翼設計提供改善之建議。 由實驗結果發現,即使於不同雷諾數,當水 平間距比在 2 至 3 之間時,尾翼的渦流釋放頻率會與主翼相同,由主翼所產生之渦流會使 得尾翼承受一振盪之力且受力增加,因此在高速飛行時會影響飛行操縱之穩定性,並可能導 致無法預期的結構受損甚至斷裂。若垂直間距比大於 1,將可減低主翼渦流對尾翼的影響。 |
英文摘要 | When the horizontal tail is located right after the main wing of an airplane, the vortex shedding frequency of the horizontal tail will be affected by the main wing and lower the frequency. Under some conditions, they will have same vortex shedding frequency that increases the forces and the amplitude of vibration on the horizontal tail. These pheomena will cause the unexpected structure damage or fracture of the horizontal tail in high speed flight. From the results of water table experiment, when the value of horizontal space ratio (L/c2) lies between 2 and 3, the main wing and horizontal tail have the same vortex shedding frequency even at different Reynolds numbers. This will affect the stability of flight control. When the value of vertical space (W/d1) is greater than 1, the effect of main wing vortex shedding to the horizontal tail is reduced. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。