Static chaos microfluid mixers using microblock-induced alternating whirling and microchannel-induced lamination = 미소블록에 의한 교차적인 회전유동과 미소유로에 의한 유동박층화를 이용한 정적 혼돈 미소유체 혼합기에 관한 연구

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dc.contributor.advisorCho, Young-Ho-
dc.contributor.advisor조영호-
dc.contributor.authorChang, Sung-Hwan-
dc.contributor.author장성환-
dc.date.accessioned2011-12-14T06:40:14Z-
dc.date.available2011-12-14T06:40:14Z-
dc.date.issued2003-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=180111&flag=dissertation-
dc.identifier.urihttp://hdl.handle.net/10203/45418-
dc.description학위논문(석사) - 한국과학기술원 : 기계공학전공, 2003.2, [ viii, 78 p. ]-
dc.description.abstractThis thesis investigates Static chaos microfluid mixers for Micro Total Analysis Systems (μTAS). The present design uses microblock for generating whirling flow in microchannel. Using microblock-induced whirling flow, we propose static chaos microfluid mixers that make alternating whirling flow for generating complexities of fluid motion (AW-type). Additionally, we propose static chaos microfluid mixers that use both alternating whirl and lamination, which is dividing channel-induced fluid splitting (AWL-type). For the test of mixing quantities, we use pH indicator phenolphthalein-ethanol solution. Using detecting the color intensities on the specimens, we quantify the mixing quantity and measure mixing length that is axial length required for 90% mixing. In the experimental study, AW-type and AWL-type can enhance mixing in microscale. AW-type enhances mixing well in relatively high Re, such as Re=6.5,13. AWL-type enhances mixing in wide range. 0.13<Re<13 (mixing length is from 0.28cm to 0.58cm). Additionally, we measure pressure drops. In the case of AW-type and AWL-type, pressure drops at maximum flow rate condition (240㎕/min, Re=13) are less than 7kPa and 5kPa, respectively. Present AWL-type static chaos microfluid mixer shows small mixing lengths, good mixing quantities, and relatively small pressure drops, which can be supplied by typical micropumps. Therefore, for the applications of Micro Total Analysis Systems (μTAS), present work has potential advantage that can reduce total size of systems and let the performance of μTAS better.eng
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjectlamination-
dc.subjectalternating whirl-
dc.subjectmicroblock-
dc.subjectmicrofluid mixer-
dc.subjectstatic chaos-
dc.subject정적 혼돈-
dc.subject유동박층화-
dc.subject교차적인 회전유동-
dc.subject미소블록-
dc.subject미소유체 혼합기-
dc.titleStatic chaos microfluid mixers using microblock-induced alternating whirling and microchannel-induced lamination = 미소블록에 의한 교차적인 회전유동과 미소유로에 의한 유동박층화를 이용한 정적 혼돈 미소유체 혼합기에 관한 연구-
dc.typeThesis(Master)-
dc.identifier.CNRN180111/325007-
dc.description.department한국과학기술원 : 기계공학전공, -
dc.identifier.uid020013520-
dc.contributor.localauthorChang, Sung-Hwan-
dc.contributor.localauthor장성환-
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ME-Theses_Master(석사논문)
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