151 citations · 1k across the 18 of their papers we have counts for
18 papers
Numerical investigation of the formation and stability of homogeneous pairs of soft particles in inertial microfluidics
Benjamin Owen, Timm Krueger
We investigate the formation and stability of a pair of identical soft capsules in channel flow under mild inertia. We employ a combination of the lattice Boltzmann, finite element…
Mesoscopic Modelling and Simulation of Soft Matter
Ulf D. Schiller, Timm Krüger, Oliver Henrich
The deformability of soft condensed matter often requires modelling of hydrodynamical aspects to gain quantitative understanding. This, however, requires specialised methods that c…
Effect of body deformability on microswimming
Jayant Pande, Laura Merchant, Timm Krüger +2
In this work we consider the following question: given a mechanical microswimming mechanism, does increased deformability of the swimmer body hinder or promote the motility of the…
Anisotropic permeability in deterministic lateral displacement arrays
Rohan Vernekar, Timm Krüger, Kevin Loutherback +2
We uncover anisotropic permeability in microfluidic deterministic lateral displacement (DLD) arrays. A DLD array can achieve high-resolution bimodal size-based separation of microp…
Effect of tube diameter and capillary number on platelet margination and near-wall dynamics
Timm Krüger
The effect of tube diameter and capillary number on platelet margination in blood flow at tube haematocrit is investigated. The system is modelled as three-…
Assembling Ellipsoidal Particles at Fluid Interfaces using Switchable Dipolar Capillary Interactions
Gary B. Davies, Timm Krueger, Peter V. Coveney +2
The fabrication of novel soft materials is an important scientific and technological challenge. We investigate the response of magnetic ellipsoidal particles adsorbed at fluid-flui…
Detachment Energies of Spheroidal Particles from Fluid-Fluid Interfaces
Gary B. Davies, Timm Krüger, Peter V. Coveney +1
The energy required to detach a single particle from a fluid-fluid interface is an important parameter for designing certain soft materials, for example, emulsions stabilised by co…
Deformability-based red blood cell separation in deterministic lateral displacement devices - a simulation study
Timm Krüger, David Holmes, Peter V. Coveney
We show, via three-dimensional immersed-boundary-finite-element-lattice-Boltzmann simulations, that deformability-based red blood cell (RBC) separation in deterministic lateral dis…
Interface deformations affect the orientation transition of magnetic ellipsoidal particles adsorbed at fluid-fluid interfaces
Gary B. Davies, Timm Krüger, Peter V. Coveney +2
Manufacturing new soft materials with specific optical, mechanical and magnetic properties is a significant challenge. Assembling and manipulating colloidal particles at fluid inte…
Parallelised Hoshen-Kopelman algorithm for lattice-Boltzmann simulations
Stefan Frijters, Timm Krueger, Jens Harting
We discuss two topics that we have encountered in our lattice-Boltzmann simulations of complex fluids: the sizes of droplets in particle-stabilised emulsions and deformable particl…
Fluctuations and diffusion in sheared athermal suspensions of deformable particles
Markus Gross, Timm Krüger, Fathollah Varnik
We analyze fluctuations of particle displacements and stresses in a sheared athermal suspension of elastic capsules (red blood cells). Upon variation of the volume fraction from th…
Rheology of dense suspensions of elastic capsules: normal stresses, yield stress, jamming and confinement effects
Markus Gross, Timm Krueger, Fathollah Varnik
We study the shearing rheology of dense suspensions of elastic capsules, taking aggregation-free red blood cells as a physiologically relevant example. Particles are non-Brownian a…
Interplay of inertia and deformability on rheological properties of a suspension of capsules
Timm Krueger, Badr Kaoui, Jens Harting
The interplay of inertia and deformability has a substantial impact on the transport of soft particles suspended in a fluid. However, to date a thorough understanding of these syst…
Computer simulations reveal complex distribution of haemodynamic forces in a mouse retina model of angiogenesis
Miguel O. Bernabeu, Martin Jones, Jens H. Nielsen +8
There is currently limited understanding of the role played by haemodynamic forces on the processes governing vascular development. One of many obstacles to be overcome is being ab…
Impact of blood rheology on wall shear stress in a model of the middle cerebral artery
Miguel O. Bernabeu, Rupert W. Nash, Derek Groen +4
Perturbations to the homeostatic distribution of mechanical forces exerted by blood on the endothelial layer have been correlated with vascular pathologies including intracranial a…
Choice of boundary condition for lattice-Boltzmann simulation of moderate Reynolds number flow in complex domains
Rupert W. Nash, Hywel B. Carver, Miguel O. Bernabeu +4
Modeling blood flow in larger vessels using lattice-Boltzmann methods comes with a challenging set of constraints: a complex geometry with walls and inlet/outlets at arbitrary orie…
Complex Dynamics of a Bilamellar Vesicle as a Simple Model for Leukocytes
Badr Kaoui, Timm Krüger, Jens Harting
The influence of the internal structure of a biological cell (e.g., a leukocyte) on its dynamics and rheology is not yet fully understood. By using 2D numerical simulations of a bi…
Inertia effects and stress accumulation in a constricted duct: A combined experimental and lattice Boltzmann study
Timm Krüger, Mohammad A. Fallah, Fathollah Varnik +3
We experimentally and numerically investigate the flow of a Newtonian fluid through a constricted geometry for Reynolds numbers in the range . The major aim is to study…