Affiliation:
1. Department of Mechanical Engineering, Assam Don Bosco University, Guwahati, India
2. Department of Mechanical Engineering, National Institute of Technology Silchar, Silchar, India
Abstract
Abstract:
The present time has witnessed a never-before-heard interest in and applications of microfluidic
devices and systems. In microfluidic systems, fluid flows and is manipulated in microchannels.
Mixing is one of the most important criteria for a majority of microfluidic systems, whose laminar nature
hinders the efficiency of micromixing. The interface between the flowing fluid and the inner wall
surface of the microchannel greatly influences the behaviour of fluidic flow in microfluidics. Many researchers
have tried to pattern the surface, introduce obstacles to flow, and include micro- or nanoprotruded
structures to enhance the mixing efficiency by manipulating the microchannel flow. New
and rapid advances in MEMS and micro/nanofabrication technologies have enabled researchers to experiment
with increasingly complex designs, enabling rapid transformation and dissemination of new
knowledge in the field of microfluidics. Here, we report the fluid flow characteristics, mixing, and associated
phenomena about microfluidic systems. Microfluidic systems and components such as microreactors,
micromixers, and microchannels are reviewed in this work. We review active and passive micromixers,
with a primary focus on widely used passive micromixers. Various microchannel geometries
and their features, mixing efficiencies, numerical analysis, and fabrication methods are reviewed.
Applications as well as possible future trends and advancements in this field, are included too. It is expected
to make the reader curious and more familiar with the interesting field of microfluidics.
Publisher
Bentham Science Publishers Ltd.
Subject
Building and Construction
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