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題 名 | A Surface Vorticity Method for Three-Dimensional Flows Passing an Axisymmetric Body=非軸對稱流的表面滑解析法 |
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作 者 | 陳建宏; 柯永澤; | 書刊名 | 中國造船暨輪機工程學刊 |
卷 期 | 16:3 1997.08[民86.08] |
頁 次 | 頁45-56 |
分類號 | 440.13 |
關鍵詞 | 表面渦法; 非軸對稱流; Surface vorticity method; Non-axisymmetric flow; |
語 文 | 英文(English) |
中文摘要 | 本文提出一個表面渦法,探討攻角不等於零的情況下,均勻勢流通過軸對稱物體所形成的流場。為描述弳向的渦漩強度變化,我們引進有限傅立葉級數的;觀念同時,吾人亦在弳向上取等間距點,以求取各項級數的係數。就本文的數值實驗,此法可準確地預測物體表面的壓力分佈、可同時用於軸對稱與非軸對稱流;同時,我們亦可了解小板形狀的準確性遠比所用的數值方法來得重要。 |
英文摘要 | A surface vorticity method is presented for analyzing a uniform potential flow past a body of revolution, such as a duct, under a non-zero angle of incidence. A finite Fourier series is employed to account for the variation of vorticity strength in the circumferential direction. Some numerical experiments conducted the study show that this method can accurately predict the pressure distribution along the body surface, as long as the flow does not separate. |
本系統中英文摘要資訊取自各篇刊載內容。