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DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 馬小康 | |
dc.contributor.author | Li-Chih Lin | en |
dc.contributor.author | 林立智 | zh_TW |
dc.date.accessioned | 2021-06-13T02:04:25Z | - |
dc.date.available | 2007-07-16 | |
dc.date.copyright | 2007-07-16 | |
dc.date.issued | 2007 | |
dc.date.submitted | 2007-07-03 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/30462 | - |
dc.description.abstract | 微流體系統中通常包含了微流道、微型閥、微感測器以及微致動器等元件,可視不同應用領域設計加裝其它元件,做廣泛之應用。本文探討之微流體系統中使用壓電式微型幫浦作為微致動器,其可區分為閥式與無閥式微幫浦。本研究係以計算流體力學套裝軟體,分析閥式與無閥式之壓電幫浦,目的在研析出具有高流量且體積小的微型幫浦。
本文於模擬進行前,針對計算軟體進行動態網格之驗證,並模擬參考文獻中漸擴/漸縮管式之無閥式微幫浦,以暸解計算結果之準確性。文中探討特斯拉閥有助於無閥幫浦之流量表現、閥式幫浦中PDMS閥體之擺動受致動器振動頻率的影響,並設計性能參數比較幫浦性能。 本研究使用單邊擺動之壓電片製作閥式幫浦,於工作頻率為140 Hz下實驗得到120 ml/min的流量表現。文中建立之微型幫浦相關模擬,可作為未來改進幫浦表現之輔助分析方法。 | zh_TW |
dc.description.abstract | A micro-fluid system usually involves Micro Channel、Micro Valve、Micro Sensor and Micro Actuator. Moreover, micro-fluid systems may be applied in different areas after installing other units with proper designs. This study integrates and classifies the micropump into “Valve-less micro-pump” and “Valve micro-pump”, and uses CFD based computer simulations. The main idea is to develop a smaller size micro-pump with high flow rate.
This study brings up new ideas of modified valve-less micro-pump, and a valve micro-pump with “one-side actuating” piezoelectric ceramic and PDMS valves. At the first part of this study, the simulations of the related references are to verify the moving grid in the CFD software and the accuracy between the simulation and experiment results. The valve-less micropump may improve the pump flow rate with a Tesla valve, and the interaction between working frequency and the valve movement in the valve micropump are discussed. And the pump rate of valve micro-pump can reach 120ml/min with the pump diaphragm vibration frequency set to 140 Hz. The developed simulation model can be used as the tool for analyzing and improving pump performance in the future. | en |
dc.description.provenance | Made available in DSpace on 2021-06-13T02:04:25Z (GMT). No. of bitstreams: 1 ntu-96-R94522402-1.pdf: 10488556 bytes, checksum: aebbb068e1093716d67a552103cc235a (MD5) Previous issue date: 2007 | en |
dc.description.tableofcontents | 目錄
誌謝 I 摘要 II Abstract III 目錄 IV 圖目錄 VI 表目錄 IX 符號說明 X 一、英文字母 X 二、希臘字母 X 第一章 緒論 1 1.1 前言 1 1.2 微型幫浦工作原理 3 1.2.1 無閥式微型幫浦 3 1.2.2 閥式微型幫浦 4 1.3 文獻回顧 5 1.4 研究動機 10 1.5 研究目的 11 第二章 理論基礎 12 2.1 數值模型之建立 12 2.1.1 無閥式微型幫浦 12 2.1.2 閥式微型幫浦 13 2.2 基本假設 13 2.3 統御方程式 14 2.4 邊界條件分析 16 2.5 閥體參數及特性 17 第三章 數值模擬準確性驗證 19 3.1 動態網格準確性驗證 19 3.1.1 動態網格驗證範例說明 19 3.1.2 數值模擬驗證 20 3.2 無閥式微型幫浦數值驗證 21 第四章 結果與討論 24 4.1 無閥式微型幫浦數值模擬 24 4.1.1 網格獨立測試 24 4.1.2 改良式無閥幫浦 25 4.2 閥式微型幫浦數值模擬 26 4.2.1 振幅與流量表現之關係 26 4.2.2 壓電片工作頻率與PDMS閥體的耦合效應 27 4.2.3 實驗結果比對與分析 28 4.3 微型幫浦性能參數比較 30 第五章 結論與建議 32 5.1 結論 32 5.2 建議與未來展望 33 參考文獻 34 | |
dc.language.iso | zh-TW | |
dc.title | 壓電式微型幫浦之數值模擬 | zh_TW |
dc.title | Numerical Analysis of Piezoelectric Micro Pump | en |
dc.type | Thesis | |
dc.date.schoolyear | 95-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 陳希立,顏溪成 | |
dc.subject.keyword | 微型幫浦,壓電,特斯拉閥,PDMS,動態網格, | zh_TW |
dc.subject.keyword | Micopump,Piezoelectric,Tesla valve,PDMS,Moving grid, | en |
dc.relation.page | 36 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2007-07-04 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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