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Abstract 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… Click to show full abstract
Abstract 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 δ conditions. However, PTSO micromixer has higher mixing efficiency. Especially when δ = 45° and D = 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. Graphical Abstract
Journal Title: Journal of Dispersion Science and Technology
Year Published: 2020
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