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Numerical Simulation of Rapid Magnetic Microfluidic Mixer by COMSOL Multiphysics
Published in 2011
Conclusions from this presentation were: * The ‘finger’ pattern increased the interface area between the ferrofluid and water * Both upstream and downstream channels achieved about a 95% mixing efficiency within 2 seconds * The predicted process agrees with experimental results * As the magnetic field intensity increases, the mixing process accelerated. This trend continue to magnetic field intensity slightly larger than 70 Oersted, when the acceleration starts to decrease, the mixing slowed down with further increase of magnetic field intensity * The mixing process accelerates with increasing Reynolds number. But when the Reynolds number exceeded 0.1, convection transports the mixture too and slows down the mixing
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