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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This 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
Advisors
Cho, Young-Horesearcher조영호researcher
Description
한국과학기술원 : 기계공학전공,
Publisher
한국과학기술원
Issue Date
2003
Identifier
180111/325007 / 020013520
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학전공, 2003.2, [ viii, 78 p. ]

Keywords

lamination; alternating whirl; microblock; microfluid mixer; static chaos; 정적 혼돈; 유동박층화; 교차적인 회전유동; 미소블록; 미소유체 혼합기

URI
http://hdl.handle.net/10203/45418
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=180111&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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