Numerical investigations of a passive micromixer with tree shape obstacles based on fractal principle and Murray's law

被引：13

作者：

Chen, Yao ^{[1
]}

Chen, Xueye ^{[1
]}

Liu, Shufen ^{[1
]}

机构：

[1] Liaoning Univ Technol, Fac Mech Engn & Automat, Jinzhou 121001, Peoples R China

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2021年 / 42卷 / 10期

关键词：

Fractal principle; Murray's law; chaotic convection; mixing energy cost;

D O I：

10.1080/01932691.2020.1770610

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This work mainly studies the mixing efficiency and mixing energy cost (MEC) of the tree-shaped obstacle micromixer based on fractal principle and Murray's law. The obstacles are regularly arranged on both sides of the T-type microchannel. The mixing efficiency and MEC of primary tree-shaped obstacle (PTSO) micromixer, secondary tree-shaped obstacle (STSO) micromixer, and tertiary tree-shaped obstacle (TTSO) micromixer are compared at five kinds of Reynolds (Res). The MEC of STSO micromixer and TTSO micromixer is higher than that of PTSO micromixer under different delta conditions. However, PTSO micromixer has higher mixing efficiency. Especially when delta = 45 degrees andD = 0.5 mm, the mixing efficiency of PTSO micromixer reaches 95%. On the other hand, the convection phenomenon caused by PTSO causes the contact area of the two fluids to increase.

引用

页码：1439 / 1447

页数：9

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