Effect of ‎C‎ross-Section on the Mixing of Liquid Species in Helix Micromixers, A Numerical Approach‎

Subject Areas : International Journal of Industrial Mathematics

توحید  دهقانی ¹ (گروه مهندسی مکانیک، دانشگاه محقق اردبیلی، اردبیل، ایران.)
رضا  پیرخوش قیافه ² (گروه مهندسی مکانیک، دانشگاه تبریز، تبریز، ایران.)
پریسا  بالازاده ³ (گروه مهندسی مکانیک، دانشگاه محقق اردبیلی، اردبیل، ایران.)
فرهاد  صادق مغانلو ⁴ (گروه مهندسی مکانیک، دانشگاه محقق اردبیلی، اردبیل، ایران.)

Received: 2020-02-13 Accepted : 2021-08-31 Published : 2021-07-01

Keywords: Mixing Index, Micromixer, numerical method, Laminar flow, Secondary flow,

Abstract :

Micromixers are an important part of microfluidics systems. In the present work, mixing was enhanced through the three helix types of micromixers. As a result of Dean vortices, a mixing index of 99% obtained at a very short length of the micromixers for the Reynolds number of 10. It is also obtained that the micromixer with rectangular cross-section showed better enhancement compared to the circular and triangular cross-section.

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