64 citations · 903 across the 56 of their papers we have counts for
56 papers
Phoretic interactions in two-medium wedge geometries
Abdallah Daddi-Moussa-Ider
We investigate the diffusiophoretic motion of a chemically isotropic active colloid in a three-dimensional wedge formed by two distinct fluid media, in the limit of vanishing Pécle…
Phoretic flow in a three-dimensional wedge geometry
Abdallah Daddi-Moussa-Ider, Semyon Yakubovich, Maciej Lisicki
Understanding how chemically induced surface transport generates fluid motion in confined geometries is essential for the rational design of microscale pumping devices and active m…
Surfactant reorientation under shear: dynamic surface tension and droplet deformation
Alexandra J. Hardy, Abdallah Daddi-Moussa-Ider, Elsen Tjhung
Surfactants are amphiphilic molecules that are generally anisotropic rather than spherical. Their orientation is therefore governed by the interplay between shear-induced reorienta…
Hydrodynamic flows induced by localized torques (rotlets) in wedge-shaped geometries
Abdallah Daddi-Moussa-Ider, Jakob Mihatsch, Michael J. Mitchell +2
Wedge-shaped geometries in low-Reynolds-number flows are of increasing importance, for instance, in the design of microfluidic devices. The corresponding Green's functions describi…
Analytical response functions for a compressible thin fluid layer with odd viscosity
Abdallah Daddi-Moussa-Ider, Yuto Hosaka, Shigeyuki Komura
Fluids composed of chiral active components can exhibit odd viscosity, a property that breaks time-reversal and parity symmetries. We investigate the hydrodynamic response to monop…
Self-diffusiophoretic propulsion in wedge confinement: The role of phoretic interactions
Abdallah Daddi-Moussa-Ider, Ramin Golestanian
We investigate the self-diffusiophoretic motion of a catalytically active spherical particle confined within a wedge-shaped domain. Using the Fourier-Kontorovich-Lebedev transform,…
Asymptotic limits of the axisymmetric solution of the Brinkman equation for a point force near a no-slip wall
Abdallah Daddi-Moussa-Ider, Andrej Vilfan
We derive the far-field and near-field solutions for the Green's function of a point force acting perpendicular to a no-slip wall in a Brinkman fluid, focusing on the regime where…
Kinetic theory of coupled binary-fluid-surfactant systems
Alexandra J. Hardy, Samuel Cameron, Steven McDonald +2
We derive a self-consistent hydrodynamic theory of coupled binary-fluid-surfactant systems from the underlying microscopic physics using Rayleigh's variational principle. At the mi…
Elastic displacements and viscous flows in wedge-shaped geometries with a straight edge: Green's functions for perpendicular forces
Abdallah Daddi-Moussa-Ider, Andreas M. Menzel
Edges are abundant when elastic solids glide in guiding rails or fluids are contained in vessels. We here address induced displacements in elastic solids or small-scale flows in vi…
Elastic displacements and viscous hydrodynamic flows in wedge-shaped geometries with a straight edge: Green's functions for parallel forces
Abdallah Daddi-Moussa-Ider, Lukas Fischer, Marc Pradas +1
For homogeneous and isotropic linearly elastic solids and for incompressible fluids under low-Reynolds-number conditions the fundamental solutions of the associated continuum equat…
Analytical solution for the hydrodynamic resistance of a disk in a compressible fluid layer with odd viscosity on a rigid substrate
Abdallah Daddi-Moussa-Ider, Andrej Vilfan, Yuto Hosaka
Chiral active fluids can exhibit odd viscosity, a property that breaks the time-reversal and parity symmetries. Here, we examine the hydrodynamic flows of a rigid disk moving in a…
Hydrodynamic flow field and frictional resistance coefficient of a disk rotating steadily in a compressible fluid layer with odd viscosity on a rigid substrate
Abdallah Daddi-Moussa-Ider, Yuto Hosaka, Elsen Tjhung +1
We analyze the hydrodynamics of a rotating disk in a two-dimensional compressible fluid layer with odd viscosity. Unlike conventional fluids, odd viscosity introduces a radial flow…
On force balance in Brinkman fluids under confinement
Abdallah Daddi-Moussa-Ider, Andrej Vilfan
A point force acting on a Brinkman fluid in confinement is always counterbalanced by the force on the porous medium, the force on the walls and the stress at open boundaries. We di…
Rotational dynamics of a disk in a thin film of weakly nematic fluid subject to linear friction
Abdallah Daddi-Moussa-Ider, Elsen Tjhung, Marc Pradas +2
Dynamics at low Reynolds numbers experiences recent revival in the fields of biophysics and active matter. While in bulk isotropic fluids it is exhaustively studied, this is less s…
Hybrid particle-phase field model and renormalized surface tension in dilute suspensions of nanoparticles
Alexandra J. Hardy, Abdallah Daddi-Moussa-Ider, Elsen Tjhung
We present a two-phase field model and a hybrid particle-phase field model to simulate dilute colloidal sedimentation and flotation near a liquid-gas interface (or fluid-fluid inte…
Internal sites of actuation and activation in thin elastic films and membranes of finite thickness
Tyler Lutz, Andreas M. Menzel, Abdallah Daddi-Moussa-Ider
Functionalized thin elastic films and membranes frequently feature internal sites of net forces or stresses. These are, for instance, active sites of actuation, or rigid inclusions…
Hydrodynamics of a disk in a thin film of weakly nematic fluid subject to linear friction
Abdallah Daddi-Moussa-Ider, Elsen Tjhung, Thomas Richter +1
To make progress towards the development of a theory on the motion of inclusions in thin structured films and membranes, we here consider as an initial step a circular disk in a tw…
Propulsion of a three-sphere micro-robot in a porous medium
Chih-Tang Liao, Andrew Lemus, Ali Gürbüz +3
Microorganisms and synthetic microswimmers often encounter complex environments consisting of networks of obstacles embedded into viscous fluids. Such settings include biological m…
Hydrodynamic efficiency limit on a Marangoni surfer
Abdallah Daddi-Moussa-Ider, Ramin Golestanian, Andrej Vilfan
A Marangoni surfer is an object embedded in a gas-liquid interface, propelled by gradients in surface tension. We derive an analytical theorem for the lower bound on the viscous di…
The effect of axisymmetric confinement on propulsion of a three-sphere microswimmer
Ali Gürbüz, Andrew Lemus, Ebru Demir +2
Swimming at the microscale has recently garnered substantial attention due to the fundamental biological significance of swimming microorganisms and the wide range of biomedical ap…
Axisymmetric monopole and dipole flow singularities in proximity of a stationary no-slip plate immersed in a Brinkman fluid
Abdallah Daddi-Moussa-Ider, Yuto Hosaka, Andrej Vilfan +1
Green's function plays an important role in many areas of physical sciences and is a prime tool for solving diverse hydrodynamic equations in the linear regime. In the present cont…
Hydrodynamics of an odd active surfer in a chiral fluid
Yuto Hosaka, Ramin Golestanian, Abdallah Daddi-Moussa-Ider
We theoretically and computationally study the low-Reynolds-number hydrodynamics of a linear active microswimmer surfing on a compressible thin fluid layer characterized by an odd…
Minimum Entropy Production by Microswimmers with Internal Dissipation
Abdallah Daddi-Moussa-Ider, Ramin Golestanian, Andrej Vilfan
The energy dissipation and entropy production by self-propelled microswimmers differ profoundly from passive particles pulled by external forces. The difference extends both to the…
Microparticle Brownian Motion near an Air-Water Interface Governed by Direction-Dependent Boundary Conditions
Stefano Villa, Christophe Blanc, Abdallah Daddi-Moussa-Ider +2
Although the dynamics of colloids in the vicinity of a solid interface has been widely characterized in the past, experimental studies of Brownian diffusion close to an air-water i…