27 citations · 29 across the 14 of their papers we have counts for
15 papers
Diffusion of charged rods across 3D varying section channels
N. Ray, A. Semkiv, J. Harting +1
We analyze the transport of rod-like particles by diffusion and drift in a three-dimensional channel with varying circular or elliptic cross section. Applying the Fick-Jacobs appro…
Closed-Form Solution for Oscillatory Flow and Wall Shear Stress in Axisymmetric Corrugated Tubes
Frederik Keil, Paolo Malgaretti, Othmane Aouane +1
Pulsatile flow in corrugated tubes arises in hemodynamics and microfluidics, where oscillatory forcing and geometric constrictions jointly determine transport and wall loading. We…
Free-Energy Analysis of Bubble Nucleation on Electrocatalytic Surfaces
Qingguang Xie, Paolo Malgaretti, Othmane Aouane +2
Bubble nucleation at catalyst surfaces plays a critical role in the operation of electrolyzers. However, achieving controlled bubble nucleation remains challenging due to limited u…
Swirl flow in microchannels: patterned slip walls enhance heat transport
L. G. Chej, M. F. Carusela, A. G. Monastra +2
Microchannel heat sinks (MCHS) are widely used for thermal management in high-power electronics due to their ability to dissipate large heat fluxes with minimal coolant consumption…
How back reaction, hydrogen transport, and capillarity control the performance of hydrogen release from liquid organic carriers
Tatiana Nizkaia, Thomas Solymosi, Paolo Malgaretti +2
We derive a theoretical model to elucidate the inhibition of catalytic activity during the dehydrogenation of Liquid Organic Hydrogen Carriers (LOHC). Within our model, we account…
Spontaneous Emergence of Solitary Waves in Active Flow Networks with Elastic Elements
Rodrigo Fernández-Quevedo García, Gonçalo Cruz Antunes, Jens Harting +6
Flow networks are fundamental for understanding systems such as animal and plant vasculature or power distribution grids. These networks can encode, transmit, and transform informa…
Zigzagging Diffusion and Non-Standard Transport in Particle-laden Nanopores Under Extreme Confinement
A. Baer, P. Malgaretti, K. Hoellring +2
Understanding transport subject to molecular-scale confinement is key to advancing nanofluidics, yet classical hydrodynamic laws often fail at these scales. Here, we study a model…
Modelling of the dewetting of ultra-thin liquid films on chemically patterned substrates: linear spectrum and deposition patterns
Tilman Richter, Paolo Malgaretti, Jens Harting
Liquid films of nanometric thickness are prone to spinodal dewetting driven by disjoining pressure, meaning that a non-wetting liquid film of homogeneous thickness in the range of…
Transport of electrolytes across nanochannels: the role of slip
F. Carusela, J. Harting, P. Malgaretti
We characterize the electrokinetic flow due to the transport of electrolytes embedded in nanochannels of varying cross-section with inhomogeneous slip on their walls, modeled as an…
Modeling of thin liquid films with arbitrary many layers
Tilman Richter, Paolo Malgaretti, Jens Harting
We propose the generalization of the thin film equation (TFE) to arbitrarily many immiscible liquid layers. Then, we provide different pathways for deriving the hydrodynamic pressu…
Chemically reactive thin films: dynamics and stability
Tilman Richter, Paolo Malgaretti, Thomas M. Koller +1
Catalyst particles or complexes suspended in liquid films can trigger chemical reactions leading to inhomogeneous concentrations of reactants and products in the film. We demonstra…
Electroneutrality breakdown for electrolytes embedded in varying-section nanopores
P. Malgaretti, I. Pagonabarraga, J. Harting
We determine the local charge dynamics of a electrolyte embedded in a varying-section channel. By means of an expansion based on the length scale separation between the axial…
Closed formula for the transport of micro-nano-particle across model porous media
P. Malgaretti, J. Harting
In the last decade the Fick-Jacobs approximation has been exploited to capture the transport across constrictions. Here, we review the derivation of the Fick-Jacobs equation with p…
Phoretic colloids close to and trapped at fluid interfaces
Paolo Malgaretti, Jens Harting
The active motion of phoretic colloids leads them to accumulate at boundaries and interfaces. Such an excess accumulation, with respect to their passive counterparts, makes the dyn…
Contact angle dependence on the fluid-wall dispersive energy
Martin Horsch, Martina Heitzig, Calin Dan +3
Vapor-liquid menisci of the truncated and shifted Lennard-Jones fluid between parallel planar walls are investigated by molecular dynamics simulation. Thereby, the characteristic e…