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Showing 1 to 8 of 8 for “"Pressure driven flows"”.
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Quantitative Measurement of Velocity and Dispersion via Magnetic Resonance Imaging
Three pressure-driven flows of increasing complexity were examined, including flow through a water-saturated bed of randomly packed spheres, a Taylor-Couette-Poiseuille flow reactor, and the interstitial space between the blades of a rotating partitioned pipe mixer. Key findings show that a …
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Characterization of Pressure-Driven and Electro-Kinetically Driven Flow in a Micro-Fluidic Chip Using Particle Imaging Velocimetry
<p>The flow profiles of pressure-driven and electro-kinetic driven flows were compared for a microfluidic chip. It was found that the pressure-driven flow had a parabolic profile while the electro-kinetic flow had a plug shaped flow profile. The measured velocities were similar to those determined …
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Displacement of Fluid Droplets From Solid Surfaces
… us to determine equilibrium interfaces in low Re flows. In earlier studies, the treatment of the contact line has been simplified by assuming fixed geometrical shapes such as circles or ellipses. In our study, we model the true physics by solving for the actual contour of the contact line as …
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Diffusiophoresis in complex and confined fluids
… compared to the traditional methods based on pressure gradients. The increase of surface/volume ratio as the length of the systems decreases the efficiency of the latter. The use of thermodynamic forces such as electric fields, chemical potential and temperature gradients is crucial for …
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Numerical Simulations of Flow and Mass Transport in Micro-Fluidic Components for Modular Bio-Analytic Chip Applications
… misalignments can have adverse effect in both pressure driven and electrokinetically driven flows. In the present work, Numerical Simulations have been performed to study the effect of material and geometrical mismatch on the flow behavior and species progression in microfluidic interconnects. …
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Direct simulations of cells motions and deformations in flow
… of blood cells, especially leukocytes, in pressure driven flows in parallel plate channels with both smooth and uneven walls under adhesion force between the leukocytes and the channel wall. Leukocytes are represented by two composite fluid models. The first model is the compound-drop model …
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An experimental study of a three-dimensional pressure-driven turbulent boundary layer
A three dimensional, pressure driven turbulent boundary layer created by an idealized wing-body junction flow is experimentally studied. The body used is a 3 : 2 elliptical nosed NACA 0020 tailed symmetric profile which has a chord length of 30.5 cm (12 inches), maximum thickness of 7.17 cm (2.824 …
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Molecule transport in nanopores with applications to water purification, power generation and disease diagnosis
… the permeation rates from non-equilibrium MD pressure driven flows. The previously reported enhancement factors over no-slip HP (of the order of 1000) approach unity when the permeations are normalized by the CHP flow rates. In a follow-up study, we revisit Sampson’s theory after more than a …