The Physics and Manipulation of Dean Vortices in Single- and Two-Phase Flow in Curved Microchannels: A Review [PDF]
Micromachines, 2023 Microchannels with curved geometries have been employed for many applications in microfluidic devices in the past decades. The Dean vortices generated in such geometries have been manipulated using different methods to enhance the performance of devices ...
Yeganeh Saffar +3 more
doaj +2 more sources
Visualization of Flows in Curved Channels with a Moderate or High Rotation Speed [PDF]
International Journal of Rotating Machinery, 1997 Flows in channels with streamwise curvature and spanwise rotation are visualized in terms of end-view near the exit of the test sections through injecting smoke into the flows. Two test sections are used, i.e.
Liqiu Wang, K. C. Cheng
doaj +3 more sources
Numerical Investigation of Vortex-Induced Enhancement in the Mixing Characteristics of Double-Spiral and Serpentine Microchannels [PDF]
MicromachinesTo enhance passive mixing in microchannels, T-shaped double-spiral and serpentine microchannels with identical curvature radii were designed and numerically analyzed across a Reynolds number (Re) range of 1 to 300.
Litao Qin +4 more
doaj +2 more sources
Effective dean vortex separation at reduced flow rates towards rare cell sorting [PDF]
Scientific ReportsThe study focuses on the design of a spiral microfluidic device, aiming to efficiently sort particle by size, at tailored flow rate for downstream processing.
Emma Dupont +9 more
doaj +2 more sources
Efficient Particle Manipulation Using Contraction–Expansion Microchannels Embedded with Hook-Shaped Arrays [PDF]
MicromachinesInertial microfluidics, as an efficient method for the manipulation of micro-/nanoparticles, has garnered significant attention due to its advantages of high throughput, structural simplicity, no need for external fields, and sheathless operation. Common
Di Huang, Yan Zhao, Chao Cao, Jiyun Zhao
doaj +2 more sources
Ethanol Production Using Zymomonas mobilis and In Situ Extraction in a Capillary Microreactor [PDF]
MicromachinesThe bacterium Zymomonas mobilis is investigated as a model organism for the cultivation and separation of ethanol as a product by in situ extraction in continuous flow microreactors.
Julia Surkamp +4 more
doaj +2 more sources
Comparison of Microfluidic Synthesis of Silver Nanoparticles in Flow and Drop Reactors at Low Dean Numbers [PDF]
MicromachinesThis study evaluates the performance of continuous flow and drop-based microfluidic devices for the synthesis of silver nanoparticles (AgNPs) under identical hydrodynamic and chemical conditions.
Konstantia Nathanael +2 more
doaj +2 more sources
An Open-Type Crossflow Microfluidic Chip for Deformable Droplet Separation Driven by a Centrifugal Field [PDF]
MicromachinesThis study presents an innovative wedge-shaped inlet weir-type microfluidic chip designed to address common issues of clogging and inefficiency in microfiltration processes.
Zekun Li +5 more
doaj +2 more sources
Non-uniform Convection Heat Transfer Characteristics of Supercritical Methane in 180° Curved Duct
Journal of Harbin University of Science and Technology, 2022 In order to reveal the heat transfer mechanism of supercritical methane (S-CH4) heat exchanger, the non-uniform convection heat transfer characteristics of supercritical methane (S-CH4) in a 180° curved duct are numerically analyzed.
HAN Chang-liang +6 more
doaj +1 more source
PIV-Measurements of Centrifugal Instabilities in a Rectangular Curved Duct with a Small Aspect Ratio
Fluids, 2021 In this study, experimental measurements were undertaken using non-intrusive particle image velocimetry (PIV) to investigate fluid flow within a 180° rectangular, curved duct geometry of a height-to-width aspect ratio of 0.167 and a curvature of 0.54 ...
Afshin Goharzadeh, Peter Rodgers
doaj +1 more source