DOI QR코드

DOI QR Code

Role of network geometry on fluid displacement in microfluidic color-changing windows

  • Ucar, Ahmet Burak (Department of Chemical and Biomolecular Engineering, North Carolina State University) ;
  • Velev, Orlin D. (Department of Chemical and Biomolecular Engineering, North Carolina State University) ;
  • Koo, Hyung-Jun (Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology)
  • 투고 : 2015.12.30
  • 심사 : 2016.07.08
  • 발행 : 2016.11.25

초록

We have previously demonstrated a microfluidic elastomer, which changes apparent color and could have potential applications in smart windows. The practical use of such functional microfluidic systems requires rapid and uniform fluid displacement throughout the channel network with minimal amount of liquid supply. The goal of this simulation study is to design various microfluidic networks for similar applications including, but not limited to, the color-switching windows and compare the liquid displacement speed and efficiency of the designs. We numerically simulate and analyze the liquid displacement in the microfluidic networks with serpentine, parallel and lattice channel configurations, as well as their modified versions with wide or tapered distributor and collector channels. The data are analyzed on the basis of numerical criteria defined to evaluate the performance of the corresponding functional systems. We found that the lattice channel network geometry with the tapered distributors and collectors provides most rapid and uniform fluid displacement with minimum liquid waste. The simulation results could give an important guideline for efficient liquid supply/displacement in emerging functional systems with embedded microfluidic networks.

키워드

과제정보

연구 과제 주관 기관 : NSF Triangle MRSEC, NSF-ASSIST Nanosystems Engineering Research Center, NSF, National Research Foundation of Korea (NRF)

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