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題名 | 平面極薄液膜之製作與液滴撞擊此液膜之顯影=Generation of Very Thin Plane Liquid-Film and Visualization of Droplet Impinging on the Film |
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作者 | 王安邦; 陳祈彰; Wang, An-bang; Chen, Chi-chang; |
期刊 | 國立臺灣大學工程學刊 |
出版日期 | 20000600 |
卷期 | 79 2000.06[民89.06] |
頁次 | 頁33-42 |
分類號 | 460.024 |
語文 | chi |
關鍵詞 | 液滴撞擊; 極薄液膜製作; 撞擊模態顯影; Drop impact; Generation of thin liquid-film; Impact visualization; |
中文摘要 | 本文首先突破過去液滴與液膜交互作用文獻中一直未能克服之障礙, 建立一具能產生精確、穩定而均勻之平面薄液膜設備,同時改善傳統實驗中目測 液膜所造成之不確定性。由本文之結果証實這些努力大幅提高實驗結果的重覆性 及精度,並從而發現液滴撞擊極薄液膜之新特性。由本文之結果發現:對於液滴 撞擊極薄液膜所產生飛濺之現象,具有臨界飛濺參數與液膜厚度無關之特性,此 是文獻中之首次發現。另外,液體之黏滯性愈大,其臨界飛濺值亦愈高。此有助 於生物醫學微陣列系統生化噴滴裝置噴射速率設計上限值之決定;而對於完全乾 燥之生醫晶片微陣列系統製程,吾人可將生化噴滴裝置噴射速率設計之上限值調 高一個數量級以上。 |
英文摘要 | The study of droplet-film-interaction has been restricted as a "demonstration" rather than a "investigation" due to its relatively scattered experimental data in the literature since a long time. A novel method has been introduced in this paper to produce an accurate and repeatable thin film on the test plate. This method avoids the traditional problems from observing and determining the film thickness, which causes the biggest uncertainty of the experiment due to the capillary meniscus in the liquid-wall-interface. It was found that the film thickness has almost no influences on the splashing threshold in this thin film regime. The new character is the first time introduced in the literature. Moreover, the higher viscosity of the fluid, the higher the critical splashing level. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。