https://scholars.lib.ntu.edu.tw/handle/123456789/424542
Title: | Fluid filling into micro-fabricated reservoirs | Authors: | MING-CHANG LU Tseng F.-G. Yang I.-D. Lin K.-H. Ma K.-T. Lu M.-C. Tseng Y.-T. MING-CHANG LU |
Keywords: | Computational model;Hydrophilic;Micro-reservoir;Surface tension | Issue Date: | 2002 | Journal Volume: | 97-98 | Start page/Pages: | 131-138 | Source: | Sensors and Actuators, A: Physical | Abstract: | This study reports that the success of reservoir-filling strongly depends on the designs of the hydrophilic wall surface and the well shape/size of the flow network. The idea is illustrated both by experiments and numerical simulations: micro-particle-image-velocimetry (£g-PIV) system is setup to monitor the process of a liquid slug moving in and out of the micro-reservoir and numerical computations are performed by solving first principle equations to provide the details of the flow process. The cross-check between measurements and computations validate the computations. Numerical computations solve conservation equations similar to homogeneous flow model used in two phase flow calculation in cooperation with volume-of-fluid (VOF) interface tracking methodology and continuum surface force (CSF) model. The simulations show that wall surface property as hydrophilic/hydrophobic is a dominating factor in filling processes of reservoirs of various shapes. A flow system consisting of micro-channels and micro-wells is fabricated using MEMS technology to demonstrate the filling process and validate numerical simulation. The agreement between measurement and computation helps to fully understand the process. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/424542 | ISSN: | 09244247 | DOI: | 10.1016/S0924-4247(01)00826-3 |
Appears in Collections: | 機械工程學系 |
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