Fluid filling into micro-fabricated reservoirs

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

43 Scopus Citations
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Author(s)

  • Y. T. Tseng
  • C. C. Chieng

Detail(s)

Original languageEnglish
Pages (from-to)131-138
Journal / PublicationSensors and Actuators, A: Physical
Volume97-98
Publication statusPublished - 1 Apr 2002
Externally publishedYes

Conference

TitleTransducers'01 Eurosensors XV
PlaceGermany
CityMunich
Period10 - 14 June 2001

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 (μ-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.

Research Area(s)

  • Computational model, Hydrophilic, Micro-reservoir, Surface tension

Citation Format(s)

Fluid filling into micro-fabricated reservoirs. / Tseng, F. G.; Yang, I. D.; Lin, K. H. et al.
In: Sensors and Actuators, A: Physical, Vol. 97-98, 01.04.2002, p. 131-138.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review