Numerical Study of Mixing and Mass Transfer in a Micromixer by Stimulation of Magnetic Nanoparticles in a Magnetic Field

被引：16

作者：

Azimi, Neda ^{[1
,2
]}

Rahimi, Masoud ^{[1
]}

Zangenehmehr, Parastoo ^{[3
]}

机构：

[1] Razi Univ, Dept Chem Engn, CFD Res Ctr, Kermanshah 6714716866, Iran

[2] Islamic Azad Univ, Kermanshah Branch, Dept Chem Engn, Kermanshah, Iran

[3] Islamic Azad Univ, Kermanshah Branch, Dept Math, Kermanshah, Iran

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2021年 / 44卷 / 06期

关键词：

CFD modeling; Ferrofluid; Magnetic field; Mass transfer; Micromixer; HEAT-TRANSFER ENHANCEMENT; TRANSFER COEFFICIENT; CFD SIMULATION; FERROFLUID; FLOW; MICROCHANNEL; NANOFLUID;

D O I：

10.1002/ceat.202000030

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A numerical study on the hydrodynamics of ferrofluid flow and mass transfer characteristics in a Y-type micromixer is performed. Computational fluid dynamics (CFD) simulation is accomplished to survey the behavior of ferrofluid flow subject to an external magnetic field and to specify its effect on the mass transfer between two immiscible liquid phases. The geometric reconstruction scheme (Geo-Reconstruct) based on piecewise linear interpolation is applied to reconstruct the two-phase interface. The results of CFD modeling are validated by experimental data, and good agreements are achieved, with a maximum relative error for the extraction efficiency of about 7.52 %. This research work shows that ferrofluid stimulation by a magnetic field can be an efficient mixing factor in microdevices.

引用

页码：1084 / 1093

页数：10

共 29 条

[1] Experimental characterization of magnetic field effects on heat transfer coefficient and pressure drop for a ferrofluid flow in a circular tube [J].