Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
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Performance Assessment of Passive Micromixer using Numerical Analysis

수치해석을 이용한 패시브 마이크로 믹서의 성능평가

  • Lee, Jeong-Ick (Department of Mechanical Design, Inha Technical College) ;
  • Kim, Chul-Kyu (Korea Institute of Civil Engineering and Building Technology)
  • 이정익 (인하공업전문대학 기계설계과) ;
  • 김철규 (한국건설기술연구원 국토보전연구본부)
  • Received : 2018.07.31
  • Accepted : 2018.10.20
  • Published : 2018.10.28
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Abstract

A micromixer is a component of a lab-on-a-chip or microfluidic device that mixes two or more chemicals together(convergence). The purpose of this study is to assess the performance of passive micromixer of various shapes. Six shapes of micromixers were compared and three dimensional modeling was carried out to have the same hydraulic diameter. The commercial code, ANSYS Fluent, was used to simulate the internal mixing flow. A numerical analysis method is described in detail in this paper. The performance of the micromixer was compared with the mixing index and pressure drop. Consequently, the CDM-8T shape showed reasonable mixing performance and relatively low pressure drop.

마이크로 믹서는 랩-온-어-칩이나 마이크로 유체 기기의 하나의 구성품으로 두 가지의 화학 물질을 혼합(융합)하는 장치이다. 본 연구는 다양한 형상의 패시브 마이크로 믹서의 성능을 평가하는 것을 목적으로 한다. 다양한 형상의 마이크로 믹서는 총 6가지의 형상을 비교하였고, 서로 동일한 수력 직경을 갖도록 3차원 모델링하였다. 내부 혼합 유동을 전산모사하기 위해여 상용 유동해석 프로그램인 ANSYS Fluent를 사용하였다. 수치해석 방법은 본 논문에 자세하게 기술하였다. 마이크로 믹서의 성능 평가는 혼합 지수와 압력 강하로 비교하였고, 결론적으로 CDM-8T은 합리적인 혼합성능과 상대적으로 낮은 압력 강하를 갖는 것으로 나타났다.

Keywords

References

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