90 citations · 400 across the 14 of their papers we have counts for
11 papers · 1 filter
Instability of particle inertial migration in shear flow
Evgeny S. Asmolov, Tatiana V. Nizkaya, Jens Harting +1
In a shear flow particles migrate to their equilibrium positions in the microchannel. Here we demonstrate theoretically that if particles are inertial, this equilibrium can become…
Inertial migration of oblate spheroids in a plane channel
Tatiana V. Nizkaya, Anna S. Gekova, Jens Harting +2
We discuss an inertial migration of oblate spheroids in a plane channel, where steady laminar flow is generated by a pressure gradient. Our lattice Boltzmann simulations show that…
Flow-driven collapse of lubricant-infused surfaces
Evgeny S. Asmolov, Tatiana V. Nizkaya, Olga I. Vinogradova
Lubricant-infused surfaces in an outer liquid flow generally reduce viscous drag. However, owing to the meniscus deformation, the infused state could collapse. Here we discuss the…
Enhanced slip properties of lubricant-infused grooves
Evgeny S. Asmolov, Tatiana V. Nizkaya, Olga I. Vinogradova
We ascertain the enhanced slip properties for a liquid flow over lubricant-infused unidirectional surfaces. This situation reflects many practical settings involving liquid flows p…
Boundary conditions at the gas sectors of superhydrophobic grooves
Alexander L. Dubov, Tatiana V. Nizkaya, Evgeny S. Asmolov +1
The hydrodynamics of liquid flowing past gas sectors of unidirectional superhydrophobic surfaces is revisited. Attention is focussed on the local slip boundary condition at the liq…
Inertial focusing of finite-size particles in microchannels
Evgeny S. Asmolov, Alexander L. Dubov, Tatiana V. Nizkaya +2
At finite Reynolds numbers, Re, particles migrate across laminar flow streamlines to their equilibrium positions in microchannels. This migration is attributed to a lift force, and…
Advective superdiffusion in superhydrophobic microchannels
Tatiana V. Nizkaya, Evgeny S. Asmolov, Olga I. Vinogradova
We consider pressure-driven flows in wide microchannels, and discuss how a transverse shear, generated by misaligned superhydrophobic walls, impacts cross-sectional spreading of Br…
Flows and mixing in channels with misaligned superhydrophobic walls
Tatiana V. Nizkaya, Evgeny S. Asmolov, Jiajia Zhou +2
Aligned superhydrophobic surfaces with the same texture orientation reduce drag in the channel and generate secondary flows transverse to the direction of the applied pressure grad…
'Gas cushion' model and hydrodynamic boundary conditions for superhydrophobic textures
Tatiana V. Nizkaya, Evgeny S. Asmolov, Olga I. Vinogradova
Superhydrophobic Cassie textures with trapped gas bubbles reduce drag, by generating large effective slip, which is important for a variety of applications that involve a manipulat…
Flow in channels with superhydrophobic trapezoidal textures
Tatiana V. Nizkaya, Evgeny S. Asmolov, Olga I. Vinogradova
Superhydrophobic one-dimensional surfaces reduce drag and generate transverse hydrodynamic phenomena by combining hydrophobicity and roughness to trap gas bubbles in microscopic te…
Note on dust trapping in inviscid vortex pairs with unequal strengths
Tatiana Nizkaya, Jean-Regis Angilella, Michel Bues
We investigate theoretically the motion of tiny heavy passive particles transported in a plane inviscid flow consisting of two point vortices, in order to understand particle dispe…