Numerical Study of Mixing in Double and Multiple T-Shaped Micromixers with Aligned and Non-Aligned Inputs

Document Type : Research Article

Authors

mechanic-energy conversion,mechanic engineer faculty,yazd university,yazd,iran

Abstract

 In this numerical investigation mixing behavior of two fluids water and ethanol with various density and viscosity mixing in 5 types of T-micromixers has been studied. The Geometries under research include 1 and 2 geometries are Multiple T-micromixer with non-aligned inputs in one and two plane respectively, and the 3, 4 and 5 geometries are included Multiple T-micromixer, double T-micromixer and T-micromixer. computational fluid dynamics commerical code of ANSYS fluent has been used to simulate mixing process at Schmidt number of 752.26 for Reynolds number in range of 1 to 200. For double T-micromixer and multiple T-micromixers two and three different types of placement for two fluids in the inputs respectively investigated and results has been compared. Cortes-Quiroz et al study used for validation present investigation. Mixing results compared for specific flow types in double and multiple micromixers with single flow type in T-micromixer. The results show mixing index and pressure drop are function of inputs’ number and position also for geometries with more than two inputs, types of input fluids have effect on these parameters.The value of 0.4878 is the maximum mixing index has been observed using flow type 1 in Multiple T-micromixer at the Reynolds number of 1.

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References

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Amirkabir Journal of Mechanical Engineering
Volume 52, Issue 7
October 2020
Pages 1715-1728

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