Numerical Simulation of Microfluidic Lens

碩士 === 國立臺灣海洋大學 === 機械與機電工程學系 === 99 === Abstract Microfluidic lenses have important applications, such as: biomedical array of chemical reactions, cell sorting, optical signal detection, and so on. A two-dimensional (2-D) microfluidic lens is formed by 2-D hydrodynamic focusing with a core flow an...

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Main Authors: Jui-Hsuan Li, 李睿軒
Other Authors: Jyh-Jong Sheen
Format: Others
Language:zh-TW
Published: 2011
Online Access:http://ndltd.ncl.edu.tw/handle/36008210778612181300
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spelling ndltd-TW-099NTOU54890062015-10-13T20:46:35Z http://ndltd.ncl.edu.tw/handle/36008210778612181300 Numerical Simulation of Microfluidic Lens 微流體透鏡之數值模擬 Jui-Hsuan Li 李睿軒 碩士 國立臺灣海洋大學 機械與機電工程學系 99 Abstract Microfluidic lenses have important applications, such as: biomedical array of chemical reactions, cell sorting, optical signal detection, and so on. A two-dimensional (2-D) microfluidic lens is formed by 2-D hydrodynamic focusing with a core flow and a sheath flow of high and low refractive indexes respectively. However, such a lens can only focus light in the horizontal plan, but not in vertical plan. This problem can be overcome by 3-D microfluidic lenses. In this thesis, a computational fluid dynamics software (COMSOL Multiphysics) is used in analyzing microfluidic lenses. In general, a microfluidic lens is a two-phse flow problem, which is difficult due to moving interface of two immiscible fluids. In order to simplify the two-phase flow problem, it is approximated by a convection and diffusion problem for one fluid. Simulation results show good agreement with experimental results for the lens geometry in the horizontal (X-Y) plane. However, the lens geometry in the vertical (X-Z) plane has great discrepancy with experical results, which can be attributed to surface tension between interface of two-phase flow. In summary, this approach can be a useful tool in the design of microfluidic lenses. Jyh-Jong Sheen 沈志忠 2011 學位論文 ; thesis 43 zh-TW
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description 碩士 === 國立臺灣海洋大學 === 機械與機電工程學系 === 99 === Abstract Microfluidic lenses have important applications, such as: biomedical array of chemical reactions, cell sorting, optical signal detection, and so on. A two-dimensional (2-D) microfluidic lens is formed by 2-D hydrodynamic focusing with a core flow and a sheath flow of high and low refractive indexes respectively. However, such a lens can only focus light in the horizontal plan, but not in vertical plan. This problem can be overcome by 3-D microfluidic lenses. In this thesis, a computational fluid dynamics software (COMSOL Multiphysics) is used in analyzing microfluidic lenses. In general, a microfluidic lens is a two-phse flow problem, which is difficult due to moving interface of two immiscible fluids. In order to simplify the two-phase flow problem, it is approximated by a convection and diffusion problem for one fluid. Simulation results show good agreement with experimental results for the lens geometry in the horizontal (X-Y) plane. However, the lens geometry in the vertical (X-Z) plane has great discrepancy with experical results, which can be attributed to surface tension between interface of two-phase flow. In summary, this approach can be a useful tool in the design of microfluidic lenses.
author2 Jyh-Jong Sheen
author_facet Jyh-Jong Sheen
Jui-Hsuan Li
李睿軒
author Jui-Hsuan Li
李睿軒
spellingShingle Jui-Hsuan Li
李睿軒
Numerical Simulation of Microfluidic Lens
author_sort Jui-Hsuan Li
title Numerical Simulation of Microfluidic Lens
title_short Numerical Simulation of Microfluidic Lens
title_full Numerical Simulation of Microfluidic Lens
title_fullStr Numerical Simulation of Microfluidic Lens
title_full_unstemmed Numerical Simulation of Microfluidic Lens
title_sort numerical simulation of microfluidic lens
publishDate 2011
url http://ndltd.ncl.edu.tw/handle/36008210778612181300
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AT lǐruìxuān wēiliútǐtòujìngzhīshùzhímónǐ
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