Dean flow-coupled inertial focusing in curved channels. [PDF]
Biomicrofluidics, 2014 Passive particle focusing based on inertial microfluidics was recently introduced as a high-throughput alternative to active focusing methods that require an external force field to manipulate particles.
Ramachandraiah H +6 more
europepmc +6 more sources
Dean-Flow Affected Lateral Focusing and Separation of Particles and Cells in Periodically Inhomogeneous Microfluidic Channels [PDF]
Sensors, 2023 The purpose of the recent work is to give a better explanation of how Dean vortices affect lateral focusing, and to understand how cell morphology can alter the focusing position compared to spherical particles.
Anita Bányai +8 more
doaj +2 more sources
Geometry-Dependent Efficiency of Dean-Flow Affected Lateral Particle Focusing and Separation in Periodically Inhomogeneous Microfluidic Channels [PDF]
Sensors, 2022 In this study, inertial focusing phenomenon was investigated, which can be used as a passive method for sample preparation and target manipulation in case of particulate suspensions.
Anita Bányai +3 more
doaj +2 more sources
Dean Flow Dynamics in Low-Aspect Ratio Spiral Microchannels. [PDF]
Sci Rep, 2017 AbstractA wide range of microfluidic cell-sorting devices has emerged in recent years, based on both passive and active methods of separation. Curvilinear channel geometries are often used in these systems due to presence of secondary flows, which can provide high throughput and sorting efficiency.
Nivedita N, Ligrani P, Papautsky I.
europepmc +4 more sources
Dean flow velocity of viscoelastic fluids in curved microchannels [PDF]
AIP Advances, 2020 Curved microchannels take advantage of inertial and Dean drag forces to achieve size-based separation of particles and cells. Despite the reported numerical and experimental correlations for Dean velocity (VDe) of Newtonian fluids, comprehensive studies ...
Arsalan Nikdoost, Pouya Rezai
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Semi-Empirical Estimation of Dean Flow Velocity in Curved Microchannels. [PDF]
Sci Rep, 2017 AbstractCurved and spiral microfluidic channels are widely used in particle and cell sorting applications. However, the average Dean velocity of secondary vortices which is an important design parameter in these devices cannot be estimated precisely with the current knowledge in the field.
Bayat P, Rezai P.
europepmc +4 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
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Transient Dean flow in an annulus: a semi-analytical approach [PDF]
Journal of Taibah University for Science, 2019 The mathematical model of a fully developed laminar transient flow formation between the gaps of two horizontally stationary concentric tubes forming concentric annulus due to the impact of sudden application of azimuthal pressure gradient is analysed ...
Basant Kumar Jha, Jibrin Danjuma Yahaya
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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
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Two Semi-Analytical Methods Applied to Hydrodynamic Stability of Dean Flow
Journal of Applied Fluid Mechanics, 2018 Hydrodynamic stability of Dean flow is studied using two semi-analytical methods of differential transform method (DTM) and Homotopy perturbation method (HPM).
H. Nowruzi +2 more
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