chaotic mixing analyzing in continuous mixer with tracing

Chaotic Mixing Analyzing in Continuous Mixer with Tracing ...

Oct 18, 2020  processes Article Chaotic Mixing Analyzing in Continuous Mixer with Tracing the Morphology Development of a Polymeric Drop Tao Chen 1, Hao Guo 2, Guo Li 3, Huajian Ji 3, Linsheng Xie 3,* and Yu Yang 2,* 1 School of Physics and Astronomy, Yunnan University, Kunming 650091, China; [email protected] 2 International Joint Research Center for Optoelectronic and Energy

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Chaotic Mixing Analyzing in Continuous Mixer with Tracing ...

The chaotic mixing process in a continuous mixer plays an important role and has an essential influence on the performance of prepared materials. To reveal how a polymeric drop experienced the chaotic mixing and give more specific analysis about the chaotic mixing, the morphology development of a single drop was traced and recorded with an on-line visualization system.

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Processes Free Full-Text Chaotic Mixing Analyzing in ...

Oct 18, 2020  The statements, opinions and data contained in the journal Processes are solely those of the individual authors and contributors and not of the publisher and the editor(s). MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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Chaotic Mixer for Microchannels Science

Jan 25, 2002  It is difficult to mix solutions in microchannels. Under typical operating conditions, flows in these channels are laminar—the spontaneous fluctuations of velocity that tend to homogenize fluids in turbulent flows are absent, and molecular diffusion across the channels is slow. We present a passive method for mixing streams of steady pressure-driven flows in microchannels at low Reynolds number.

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A Continuous Biodiesel Production Process Using a Chaotic ...

Nov 15, 2019  10%  A new transesterification reactor, operating in continuous mode, has been designed, made and tested experimentally in order to produce a biodiesel from rapeseed oil. This reactor is an alternative solution to the batch system existing in the industry. It is composed of three-dimensional serpentine geometry (S-3D). The flow in this geometry is laminar, Reynolds number is

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Chaotic Mixer for Microchannels - Science

Chaotic Mixer for Microchannels Abraham D. Stroock,1* Stephan K. W. Dertinger,1 Armand Ajdari,2 Igor Mezic«,3 Howard A. Stone,4 George M. Whitesides1* It is difÞcult to mix solutions in microchannels. Under typical operating

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A Microfluidic Mixer for Chaotic Mixing of Magnetic Particles

fluids, chaotic mixing seems to be a promising method. The purpose of this study is to examine the efficiency of a chaotic micro-mixer through numerical simulations. 2 CONCEPT OF THE MIXER The burst-view of the mixer is depicted in figure 1a. A straight channel with two

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Approximate mapping method for prediction of chaotic ...

Oct 01, 2010  The use of approximate Poincaré maps for prediction of chaotic mixing in spatial-periodic channel is investigated in this article. The maps are constr

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(PDF) Efficient Spatial-temporal Chaotic Mixing in ...

Further experimental Approach to Nonlinear Dynamics and Chaos (Redwood studies in the temporal three-dimensional chaotic mixers City, CA: Addision-Wesley) [19] Volpert M, Meinhart C, Mezic I and Dahleh M 2002 Modeling driven and stirred by pressure or an electric field are still and numerical analysis of mixing in an actively controlled needed.

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陈涛-昆明理工大学化学工程学院 - kmust.cn

Chaotic Mixing Analyzing in Continuous Mixer with Tracing the Morphology Development of a Polymeric Drop [J]. Processes, 2020, 8, 1308. (SCI) [4]Tao Chen, Hua Lin, Haili Zhao, Xin Chen, Tong Wu, Guo Li, Huajian Ji, Jin Sha, Yulu Ma, Linsheng Xie. Agglomerate Size Evolution in Modular Twin-Screw Extruder: Modeling and Validation with CaCO3/LLDPE ...

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Visualizing millisecond chaotic mixing dynamics in ...

Mar 15, 2012  INTRODUCTION. Droplet-based microfluidic devices have been exploited for various applications including fast kinetics measurement, 1, 2, 3 protein crystallization, 4, 5 synthesis of micro/nano particles, 6, 7 DNA sequencing and amplification, 8, 9 single-cell level gene expression 10 and enzyme assays, 11 octanol-water partition coefficient measurement, 12 liquid-liquid extraction, 13

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Processes Free Full-Text Construction and Automation ...

Chaotic Mixing Analyzing in Continuous Mixer with Tracing the Morphology Development of a Polymeric Drop. Previous Article in Special Issue. Fed-Batch Sucrose Crystallization Model for the B Massecuite Vacuum Pan, Solution by Deterministic and Heuristic Methods. 25th Anniversary

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A Continuous Biodiesel Production Process Using a Chaotic ...

Nov 15, 2019  A new transesterification reactor, operating in continuous mode, has been designed, made and tested experimentally in order to produce a biodiesel from rapeseed oil. This reactor is an alternative solution to the batch system existing in the industry. It is composed of three-dimensional serpentine geometry (S-3D). The flow in this geometry is laminar, Reynolds number is less than 360.

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Visualizing millisecond chaotic mixing dynamics in ...

numerical study of chaotic mixing in a drop moving through a winding channel using a finite-volume and front-tracking method. Sarrazin et al.19 used a similar method to simulate the com-plete 3D dynamics inside the droplets and performed 2D computations with tracing particles to reveal the mixing inside the droplets.

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Computational analysis of regular and chaotic mixing in a ...

Aug 01, 2001  Mixing in an unbaffled stirred tank equipped with a 6-blade radial flow impeller is examined computationally. Results demonstrate that the flow generated by constant impeller speed is partially chaotic. Under these conditions, the stretching experienced by fluid elements located within segregated toroidal regions of the flow increases slowly at ...

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Approximate mapping method for prediction of chaotic ...

Oct 01, 2010  The use of approximate Poincaré maps for prediction of chaotic mixing in spatial-periodic channel is investigated in this article. The maps are constr

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Introduction of a chaotic dough mixer, part A ...

May 01, 2013  The motivation of this work is to propose a special dough mixer with chaotic advection to take advantage of high performance mixing in chaotic mixers and to develop typical dough mixers. In order to prevent common difficulties encountered due to the dynamic mesh, a mathematical model was employed based on neglecting the transient term of the momentum equation using conceptual

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Mixing enhancement by pulsating chaotic advection ...

Dec 01, 2013  Furthermore, tracing the evolution of axial vorticity and transverse strain rate as well as analysis of the Dean cell movements allowed assessment of the mixing in the flow. The experimental results reported here show that pulsation enhances mixing in an alternating Dean flow (chaotic

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(PDF) Efficient Spatial-temporal Chaotic Mixing in ...

Further experimental Approach to Nonlinear Dynamics and Chaos (Redwood studies in the temporal three-dimensional chaotic mixers City, CA: Addision-Wesley) [19] Volpert M, Meinhart C, Mezic I and Dahleh M 2002 Modeling driven and stirred by pressure or an electric field are still and numerical analysis of mixing in an actively controlled needed.

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Using chaotic advection for facile high-throughput ...

Jun 09, 2020  Experimental setup. Continuous chaotic printing is based on the ability of a static mixer to create structure within a fluid. The Kenics static mixer (KSM) induces a chaotic flow by a repeated process of reorientation and splitting of fluid as it passes through the mixing elements. (A) Schematic representation of a KSM with two inlets on the lid.

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Chaotic mixing in electro-osmotic flows driven by ...

May 18, 2009  This paper presents an investigation into chaotic mixing in an electro-osmotic flow through a microchannel. In the mixing system, the continuous

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Chaotic mixing by longitudinal vorticity - ScienceDirect

Dec 18, 2013  1. Introduction. High quality mixing is needed in many engineering applications, such as in chemical reactors, food processing, pharmaceutics and cosmetics (Thakur et al., 2003).Various systems are used for this aim and can be classified into two main categories; batch systems, consists generally of agitated vessels, and continuous processes, namely static mixers or multifunctional heat ...

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Mixing and hydrodynamic analysis of a droplet in a planar ...

Feb 19, 2009  In this work we combined numerical simulation with molecular-diffusion effect, high-tempo micro-particle image velocimetry (μ-PIV), and probability distribution function (PDF) analysis to investigate the chaotic mixing and hydrodynamics inside a droplet moving through a planar serpentine micromixer (PSM). Robust solutions for the distributions of interface and concentration of the droplets ...

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Passive mixers in microfluidic systems: A review ...

Mar 15, 2016  Many studies have shown the effectiveness of intersecting channels in enhancing the mixing performance in microfluidic mixers by splitting, rearranging and combining the component fluid flows within the microchannel , , , , , , , , , , , .Ansari et al. performed a numerical and experimental investigation into the mixing performance of a micromixer based on unbalanced splits and collisions

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Mixing enhancement by pulsating chaotic advection ...

Dec 01, 2013  Furthermore, tracing the evolution of axial vorticity and transverse strain rate as well as analysis of the Dean cell movements allowed assessment of the mixing in the flow. The experimental results reported here show that pulsation enhances mixing in an alternating Dean flow (chaotic

get price

Chaotic mixing by longitudinal vorticity - ScienceDirect

Dec 18, 2013  1. Introduction. High quality mixing is needed in many engineering applications, such as in chemical reactors, food processing, pharmaceutics and cosmetics (Thakur et al., 2003).Various systems are used for this aim and can be classified into two main categories; batch systems, consists generally of agitated vessels, and continuous processes, namely static mixers or multifunctional heat ...

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Visualizing millisecond chaotic mixing dynamics in ...

The mixing efficiencies of chaotic mixing, calculated from both experimental and simulation results, also show a good agreement, indicating that the mixing of two probes achieves ~80% after 18 ms. Our passive scanning FLIM with improved data analysis for characterization of mixing in microdroplets provides unprecedented insight into microflow ...

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Introduction of a chaotic dough mixer, part A ...

May 01, 2013  The motivation of this work is to propose a special dough mixer with chaotic advection to take advantage of high performance mixing in chaotic mixers and to develop typical dough mixers. In order to prevent common difficulties encountered due to the dynamic mesh, a mathematical model was employed based on neglecting the transient term of the momentum equation using conceptual

get price

Chaotic mixing in electro-osmotic flows driven by ...

May 18, 2009  This paper presents an investigation into chaotic mixing in an electro-osmotic flow through a microchannel. In the mixing system, the continuous

get price

Using chaotic advection for facile high-throughput ...

Jun 09, 2020  Experimental setup. Continuous chaotic printing is based on the ability of a static mixer to create structure within a fluid. The Kenics static mixer (KSM) induces a chaotic flow by a repeated process of reorientation and splitting of fluid as it passes through the mixing elements. (A) Schematic representation of a KSM with two inlets on the lid.

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(PDF) Chaotic mixing by longitudinal vorticity Ahmed ...

Chaotic mixing by longitudinal vorticity. Chemical Engineering Science, 2013. Ahmed Elmarakbi

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Evaluation of the Mixing Performance of the Micromixers ...

mixing is obtained at the cost of large pressure head loss. DOI: 10.1115/1.2948364 1 Introduction Rapid mixing is crucial to the microfluid systems, which are now widely used in biochemistry analysis, chemical synthesis, drug delivery, high-throughput screening, among others. In micro-systems, the small size prohibits turbulent mixing. The ...

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Mixing and hydrodynamic analysis of a droplet in a planar ...

Feb 19, 2009  In this work we combined numerical simulation with molecular-diffusion effect, high-tempo micro-particle image velocimetry (μ-PIV), and probability distribution function (PDF) analysis to investigate the chaotic mixing and hydrodynamics inside a droplet moving through a planar serpentine micromixer (PSM). Robust solutions for the distributions of interface and concentration of the droplets ...

get price

Passive mixers in microfluidic systems: A review ...

Mar 15, 2016  Many studies have shown the effectiveness of intersecting channels in enhancing the mixing performance in microfluidic mixers by splitting, rearranging and combining the component fluid flows within the microchannel , , , , , , , , , , , .Ansari et al. performed a numerical and experimental investigation into the mixing performance of a micromixer based on unbalanced splits and collisions

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WHY CHAOTIC MIXING OF PARTICLES IS INEVITABLE IN THE

Oct 07, 2011  The key to understanding chaotic mixing is to identify two types of frequency in the system, each of which is induced by a different mechanism; their interplay creates chaos. The paper explains why chaotic mixing of particles needs to occur in the pulmonary acinus, with instructive illustrations but without any equations.

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Fabrication of Functionalized Double-Lamellar ...

Jun 18, 2012  Previously λ of ∼0.1 cm (0.08−0.13 cm, 90% mixing ) was reported for the microchannel with a chaotic mixer array with a structure that was very similar to our reaction channel structure. Thus, in our reaction channel with the chaotic mixer array, the mixing length for 90% mixing (Δy 90) at the flow rate of 10.0 µL min −1 y 90 suggested ...

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Morphology Development in Kenics Static Mixers ...

Ottino (1992) who studied chaotic advection in some continuous flows. Khakhar et al. (1987) analyzed one of these systems in more detail, the partitioned pipe mixer (PPM), consisting of a pipe and series of flat partitions at right angles to each other. These experimental studies clearly show regular and chaotic mixing in a three-dimensional ...

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STATIC MIXERS FOR CONTINUOUS FLOW CATALYTIC REACTORS ...

Dec 26, 2019  The present disclosure relates to catalytic static mixers comprising catalytic material. The static mixers can be configured for use with continuous flow chemical reactors, for example tubular continuous flow chemical reactors for heterogeneous catalysis reactions. This disclosure also relates to processes for preparing static mixers.

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