Results 21 to 30 of about 76,852 (297)

Mechanism for clogging of microchannels [PDF]

open access: yesPhysical Review E, 2006
We investigate clogging of microchannels at the single-pore level using microfluidic devices as model porous media. The process of clogging is studied at low volume fractions and high flow rates, a technologically important regime. We show that clogging is independent of particle flow rate and volume fraction, indicating that collective effects do not ...
Wyss, Hans M.   +4 more
openaire   +3 more sources

Population genetics in microchannels

open access: yesProceedings of the National Academy of Sciences, 2022
Significance Many microbial populations proliferate in small channels. In such environments, reproducing cells organize in parallel lanes. Reproducing cells shift these lanes, potentially expelling other cells from the channel. In this paper, we combine theory and experiments to understand how these dynamics affects the diversity
Anzhelika Koldaeva   +3 more
openaire   +3 more sources

A Critical Review on Geometric Improvements for Heat Transfer Augmentation of Microchannels

open access: yesEnergies, 2022
With the application of microdevices in the building engineering, aerospace industry, electronic devices, nuclear energy, and so on, the dissipation of high heat flux has become an urgent problem to be solved.
Hao Yu   +4 more
doaj   +1 more source

Microchannel filter for air purification

open access: yesOpen Physics, 2020
In this study, we propose a new design for a microchannel filter. The closed indoor environments with which we interact daily are sources of diseases for the respiratory system of human beings.
Rodriguez Andrade Jonathan   +2 more
doaj   +1 more source

Effect of microchannel aspect ratio on residence time distributions and the axial dispersion coefficient [PDF]

open access: yes, 2009
The effect of microchannel aspect ratio (channel depth/channel width) on residence time distributions and the axial dispersion coefficient have been investigated for Newtonian and shear thinning non-Newtonian flow using computational fluid dynamics.
Aubin, Joelle   +3 more
core   +2 more sources

Traces of surfactants can severely limit the drag reduction of superhydrophobic surfaces [PDF]

open access: yes, 2017
Superhydrophobic surfaces (SHSs) have the potential to achieve large drag reduction for internal and external flow applications. However, experiments have shown inconsistent results, with many studies reporting significantly reduced performance. Recently,
Goldstein, Raymond E.   +3 more
core   +2 more sources

Effects of barriers on the thermal enhancement in boiling flow within a ribbed-microchannel using molecular dynamics simulation approach

open access: yesAin Shams Engineering Journal, 2023
In this work, argon flow within different microchannels with square cross-section is simulated by the molecular dynamics simulation (MDS) method. The first simulation is done within ideal microchannel and then, internal surfaces of this microchannel are ...
Wanhai Liu   +8 more
doaj   +1 more source

Optimal design of multi-channel microreactor for uniform residence time distribution [PDF]

open access: yes, 2010
Multi-channel microreactors can be used for various applications that require chemical or electrochemical reactions in either liquid, gaseous or multi phase.
A Ziogas   +29 more
core   +3 more sources

Electrokinetic instability in microchannels

open access: yesPhysical Review E, 2012
The effect of geometric confinement on electroconvective instability due to nonequilibrium electro-osmotic slip at the interface of an electrolytic fluid and charge-selective solid is studied. It is shown that the topology of the marginal stability curves and the behavior of the critical parameters depend strongly on both channel geometry and ...
Jarrod, Schiffbauer   +2 more
openaire   +3 more sources

Acoustic Streaming Efficiency in a Microfluidic Biosensor with an Integrated CMUT

open access: yesMicromachines, 2023
The effect of microchannel height on acoustic streaming velocity and capacitive micromachined ultrasound transducer (CMUT) cell damping was investigated.
Donatas Pelenis   +5 more
doaj   +1 more source

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