Results 161 to 170 of about 2,383 (205)

Passive Vortex Micromixers Utilizing Hybrid Laminations

Volume 13: Nano-Manufacturing Technology; and Micro and Nano Systems, Parts A and B, 2008
This theoretical investigation analyzed the three-dimensional momentum and mass transfer characteristics arising from the multiple inlets and single outlet in micro chamber which consists of a right square prism, an octagonal prism or a cylinder. The effects of various geometric parameters, inlet velocities, and the types of lamination on the mixing ...
Jyh-Jian Chen, Yu-Cheng Luo, Shin-Hau Su, Nai-Yu Jheng   +3 more
openaire   +1 more source

Mathematical Analysis of a Spiral Passive Micromixer

2021
This research work possesses a mathematical analysis and comparison of mixing performance and flow behavior inside microchannels with different geometries: simple T shape and spiral/helical shape. The flow analysis is carried out using Navier–Stokes equations, and mixing performance of two fluids, namely water and dye, is numerically calculated.
Syed Farhan Javed, Mohammad Zunaid, Mubashshir Ahmad Ansari   +2 more
openaire   +1 more source

Passive Micromixer with Sharp Edges: Simulation and Optimization

2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2020
In this study, the mixing performances of passive micromixers with sharp edges were investigated. First, a validation study was conducted by using experimental results on a passive micromixers in the literature. The arrangement of the triangle obstacles was then changed to optimize the mixing performance.
Moein Talebian Gevari, Ali Kosar, Murat Kaya Yapici   +2 more
openaire   +1 more source

A flexible layout design method for passive micromixers

Biomedical Microdevices, 2012
This paper discusses a flexible layout design method of passive micromixers based on the topology optimization of fluidic flows. Being different from the trial and error method, this method obtains the detailed layout of a passive micromixer according to the desired mixing performance by solving a topology optimization problem.
Yongbo, Deng, Zhenyu, Liu, Ping, Zhang, Yongshun, Liu, Qingyong, Gao, Yihui, Wu   +5 more
openaire   +2 more sources

Staggered passive micromixers with fractal surface patterning

Journal of Micromechanics and Microengineering, 2006
We present a procedure for inducing chaotic mixing based on a non-periodic patterning of the walls making use of the Weierstrass fractal function to generate the locations for the grooves. We show the numerical analysis of flow in three different geometries generated with the Weierstrass function and compare the results with a fourth geometry, quite ...
Marco Camesasca, Miron Kaufman, Ica Manas-Zloczower   +2 more
openaire   +1 more source

Investigation of Mixing Performance in Passive Micromixers

Industrial & Engineering Chemistry Research, 2016
This work is focused on the mixing performance in passive microchannels. Experiments are performed to investigate the effect of inlet mixing angle and surface wettability on the micromixing efficiency in micromixers. The iodate–iodide testing reaction and a micro particle image velocimetry (micro-PIV) system are adopted to characterize the micromixing ...
Weipeng Zhang, Xi Wang, Xin Feng, Chao Yang, Zai-Sha Mao   +4 more
openaire   +1 more source

A passive micromixer for enzymatic digestion of DNA

Microelectronic Engineering, 2014
A passive micromixer with zigzag geometry is fabricated using FPC technology.The total length of the micromixer is estimated by simulation.The micromixer is evaluated with a DNA digestion process with restriction enzymes.Simultaneous mixing of enzymes with DNA and DNA digestion is achieved in 2.5min.
V.E. Papadopoulos, I.N. Kefala, G. Kaprou, G. Kokkoris, D. Moschou, G. Papadakis, E. Gizeli, A. Tserepi   +7 more
openaire   +1 more source

Simple passive micromixer using recombinant multiple flow streams

SPIE Proceedings, 2007
A passive microfluidic mixer with high performance is designed and fabricated in this work. Diamond-shaped obstacles were chosen to split the flow into several streams, which are then guided back together after the obstacle. To keep pressure drop low, the channel cross-sectional area was maintained equal to the input cross-sectional area, and this was ...
Joon Sub Shim, Irena Nikcevic, Michael J. Rust, Ali Asgar S. Bhagat, William R. Heineman, Carl J. Seliskar, Chong H. Ahn, Ian Papautsky   +7 more
openaire   +1 more source

Numerical study of a novel passive micromixer design

2010 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, 2010
Miniaturization is the trend in analytical chemistry and life sciences. In the past two decades, miniaturization of fluid handling and fluid analysis has been emerging in the interdisciplinary research field of microfluidics. Some of the microfluidic applications are drug delivery, lab-on-a-chip, pharmaceutical development, synthesis of amino acids etc.
Siddharth Bhopte, Bahgat Sammakia, Bruce Murray   +2 more
openaire   +1 more source

Design and characterization of a passive recycle micromixer

Journal of Micromechanics and Microengineering, 2004
A new design was devised for a recycle micromixer, i.e., a passive micromixer with side channels for a recycle flow. The geometry, required to perform a recycle flow and effective mixing, was determined by a simulation based on computational fluid dynamics.
Noh J, Kim SH, Park HG, Woo SI, Jeon MK, Kim JH   +5 more
openaire   +2 more sources