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研究生： 陳辭修
Chen, Tzu-Hsiu
論文名稱： 三層I型微流道流動特性之研究
A study of flow characters in a three-layer I-type microchannel
指導教授： 李定智
Lee, Denz
學位類別： 碩士
Master
系所名稱： 工學院 - 航空太空工程學系
Department of Aeronautics & Astronautics
論文出版年： 2009
畢業學年度： 97
語文別： 中文
論文頁數： 63
中文關鍵詞： 微流體 、整流 、平整界面
外文關鍵詞： microfluidic, rectifying, smooth interface
相關次數： 點閱：70  下載：3 
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    • 近年來微機電系統(Micro-Electro-Mechanical System, MEMS)技術迅速發展，並引發了微全分析系統(Micro Total Analysis System, μ-TAS)的研究，此系統具有體積小、檢測只需少量樣本、反應時間快、便於攜帶等優點，若再結合新開發的微製程技術(如CO2)雷射製程便可達到減少成本、可大量生產等效果，且目前已有細胞的分離、檢測、微型燃料電池等各方面應用。
    本研究基於為了讓兩道微流體可以有平整、平穩的交界面設計出I字型3D匯流晶片，希望藉由多了中間層的設計可以整流流體，使其兩道流體接觸後的交界面是平整的，另外也希望此設計能有其它更廣泛的可能應用，因此學生對I字型管道進行一些流場上的探討，如平整的界面可應用於擴散分離或微型燃料電池，多了中間層的設計可應用於細胞養殖等等。
    由實驗結果與數值模擬成功交互比對驗證，本研究的微流體晶片可以使兩道微流體接觸後擁有平整的交界面。

    Micro-Electro-Mechanical-System (MEMS) has developed rapidly in recent years, and it facilitates the study of micro total analysis system (μ-TAS). The system offers several potential advantages such as portability, low cost, small volume of samples and reagents, short analysis time, and easier to operate and so on. Also, the system has various applications for cell separation, detection and micron fuel cell etc.
    The purpose of this study was let the interface of the two incoming fluid shows smooth and stable. Therefore, we designed the “I-type 3D microchip” which can rectify the flow and makes the interface becoming more smooth by the structure of the middle-plane. The smooth interface is applied in diffusion and separation or micron fuel cell. Furthermore, the design of middle-plane can also use for cell cultivation.

    摘要..........I ABSTRACT..........II 誌謝..........III 目錄..........IV 表目錄..........VII 圖目錄..........VIII 符號說明..........X 第一章 緒論..........1 1-1 前言..........1 1-2 研究動機..........2 1-3 研究目的..........2 1-4 文獻回顧..........3 第二章 理論基礎與管道設計..........5 2-1 微流道下的流體力學特性..........5 2-2 理論基礎..........7 2-2-1 流體阻力（flow resistance）..........7 2-2-2 高速公路收費站控管概念..........10 2-2-3 剪應力原理..........11 2-3 管道設計..........11 第三章實驗與模擬系統設定..........12 3-1 實驗設備..........12 3-2 實驗晶片製作..........13 3-3 實驗方法..........16 3-4 模擬系統架構..........17 3-4-1 統御方程式..........17 3-4-2 格點建立..........19 3-4-3 模擬條件設定..........19 3-4-4 模擬數值分析方法..........20 3-5 界面位置與影像擷取..........20 第四章 結果與討論..........22 討論大綱..........23 4-1 流動方式為平行流入I型微流道中間層對界面平整影響之探討..........24 4-1-1 中間層高度的影響..........24 4-1-2 固定W改變L的影響..........24 4-1-3 固定L改變W的影響..........26 4-1-4 窗口等比例放大縮小的影響..........26 4-1-5 定窗口面積下改變W及L..........27 4-2 實驗結果與模擬之比對..........27 4-3 影像擷取之探討..........28 4-4 流動方式為對沖模式下流場之探討..........29 4-4-1 AR＝0.1（h/w＝0.1）改變中間層高度之探討..........29 4-4-2 AR＝0.5（h/w＝0.5）改變中間層高度之探討..........30 4-4-3 AR＝1（h/w＝1）改變中間層高度之探討..........30 第五章 結論..........32 5-1 總結..........32 5-2 未來展望..........34 參考文獻..........35 自述..........63

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