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Modeling the effect of flow-induced mechanical erosion during coffee filtration
(2021-09)
The espresso extraction process involves a complex transport inside a geometry-changing porous medium. Large solid grains forming the majority of the porous medium can migrate, swell, consolidate and they can also ...
Metallic microswimmers driven up the wall by gravity
(2021-07-21)
Experiments on autophoretic bimetallic nanorods propelling within a fuel of hydrogen peroxide show that tail-heavy swimmers preferentially orient upwards and ascend along inclined planes. We show that such gravitaxis is ...
Thermal conductivity of amorphous polymers and its dependence on molecular weight
(2021-07-16)
Thermal conductivity is an important transport property governing the performance of polymers in non-isothermal conditions. Nevertheless, its dependence on molecular weight M has not been the subject of as much attention ...
A conservative lubrication dynamics method for the simulation of dense non-colloidal suspensions with particle spin
(2021-02-15)
In this paper, a novel Fast Lubrication Dynamics method that can efficiently simulate dense non-colloidal suspensions is proposed. To reduce the computational cost in the presented methodology, interparticle lubrication-based ...
Frequency domain modelling of a coupled system of floating structure and mooring Lines: An application to a wave energy converter
(2021-01-15)
Floating structures for single offshore renewable energy devices, i.e. wave energy converters, tend to be significantly smaller than those of the traditional offshore industry and the interaction between floater motions ...
Dynamics and rheology of a suspension of super-paramagnetic chains under the combined effect of a shear flow and a rotating magnetic field
(2021)
This study presents an analysis of the dynamics of a single and multiple chains of spherical super-paramagnetic beads suspended in a Newtonian fluid under the combined effect of an external rotating magnetic field and a ...
Motile dislocations knead odd crystals into whorls
(2021-01-01)
The competition between thermal fluctuations and potential forces governs the stability of matter in equilibrium, in particular the proliferation and annihilation of topological defects. However, driving matter out of ...
Arbitrary flow boundary conditions in smoothed dissipative particle dynamics: A generalized virtual rheometer
(2021-01-01)
In this work, a methodology to perform rheological studies on smoothed dissipative particle dynamics under arbitrary flow configurations is introduced. To evaluate the accuracy and flexibility of the proposed methodology, ...