547 citations · 9.5k across the 169 of their papers we have counts for
7 papers · 1 filter
Electro-viscous effects in capillary filling of nanochannels
Niels Asger Mortensen, Anders Kristensen
We theoretically examine the widespread hypothesis of an electro-viscous origin of the increase in apparent viscosity observed in recent experiments on capillary filling of nanocha…
Comment on "Pinched Flow Fractionation: Continuous Size Separation of Particles Utilizing a Laminar Flow Profile in a Pinched Microchannel"
Niels Asger Mortensen
[First paragraph] In a recent paper Yamada et al. propose the novel concept of "pinched flow fractionation" (PFF) for the continuous size separation and analysis of particles in mi…
Mass and charge transport in micro and nano-fluidic channels
N. A. Mortensen, L. H. Olesen, F. Okkels +1
We consider laminar flow of incompressible electrolytes in long, straight channels driven by pressure and electro-osmosis. We use a Hilbert space eigenfunction expansion to address…
Transport coefficients for electrolytes in arbitrarily shaped nano and micro-fluidic channels
N. A. Mortensen, L. H. Olesen, H. Bruus
We consider laminar flow of incompressible electrolytes in long, straight channels driven by pressure and electro-osmosis. We use a Hilbert space eigenfunction expansion to address…
Universal dynamics in the onset of a Hagen-Poiseuille flow
Niels Asger Mortensen, Henrik Bruus
The dynamics in the onset of a Hagen-Poiseuille flow of an incompressible liquid in a channel of circular cross section is well-studied theoretically. We use an eigenfunction expan…
Reexamination of Hagen-Poiseuille flow: shape-dependence of the hydraulic resistance in microchannels
Niels Asger Mortensen, Fridolin Okkels, Henrik Bruus
We consider pressure-driven, steady state Poiseuille flow in straight channels with various cross-sectional shapes: elliptic, rectangular, triangular, and harmonic-perturbed circle…
Interfacial tension in water at solid surfaces
Niels Asger Mortensen, Anders Kuhle, Knud A. Morch
A model for the formation of cavitation nuclei in liquids has recently been presented with basis in interfacial liquid tension at non-planar solid surfaces of concave form. In the…