研究生: |
李泓卓 H.C.LEE |
---|---|
論文名稱: |
表面張力驅動流場之數值模擬研究 Research of numerical simulation of surface tension driven flow |
指導教授: |
李雄略
S.L.LEE |
口試委員: | |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 動力機械工程學系 Department of Power Mechanical Engineering |
論文出版年: | 2002 |
畢業學年度: | 90 |
語文別: | 中文 |
論文頁數: | 56 |
中文關鍵詞: | 表面張力 、曲率 、動態接觸角 |
外文關鍵詞: | surface tension, curvature, dynamic contact angle |
相關次數: | 點閱:3 下載:0 |
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本文目的在發展一簡單的數值方法模擬流體於垂直的毛細管中,因毛細現象所造成自由液面(free surface)於管中的運動,並真實的計算液面的幾何形狀。表面張力表現在自由液面的形狀上,即自由液面的曲率,曲率越大,表面張力就越大,所以決定自由液面的曲率等於決定表面張力的大小。本文引進動態接觸角(dynamic contact angle)與毛細數(capillary number)的關係式於軸對稱圓柱坐標系統管壁上動態接觸角之模擬,用於計算管壁附近液面之形狀。文中並會探討此一關聯式之準確性。為了驗證此一數值模式的適用性與準確性,模擬結果將與實驗數據做比較。
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5.Ahmed Hamraoui and Krister Thuresson, “Can a Dynamic Contact Angle Be Understood in Terms of a Friction Coefficient,” Journal of Colloid and Interface Science, Vol.226,199-204(2000).
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8.John C. Berg, Wettability, 311-429(1993).
9. S. L. Lee and R. Y. Tzong, “Artificial Pressure for Incompressible Flows,” Int. J. Heat Mass Transfer, Vol. 10, 2705-2716 (1992).
10. S. L. Lee, “Weighting function Scheme and Its Application on Multi-Dimensional Conservation Equations,” Numerical Heat Transfer, Vol. 32, 2065-2073 (1989).