Browsing CFD Modelling and Simulation by Issue Date
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Normal lubrication force between spherical particles immersed in a shearthickening fluid
(20181207)In this work, the inverse biviscous model [Physics of Fluids 29, 103104 (2017)] is used to describe a shearthickening fluid. An analytical velocity profile in a planar Poiseuille flow is utilized to calculate an approximate ... 
Apparent slip mechanism between two spheres based on solvent rheology: Theory and implication for the shear thinning of nonBrownian suspensions
(20181210)Analytical results for the apparent slip between two spheres in a simple biviscous model of a shear thinning fluid are presented. Velocity profiles and apparent slip lengths along the surfaces are analyzed in order to ... 
Mesoscopic modelling and simulation of espresso coffee extraction
(2019)A mesoscopic model for the simulation of espresso extraction based on the Smoothed Particle Hydrodynamics method is presented. The model incorporates some essential features such as bimodal granulometry (finescoarses) of ... 
Hydrodynamic identification of NAUTILUS FOWT platform from small scale tests
(2019)A smallscale tank test campaign of the NAUTILUS offshore wind floating semisubmersible platform was held at the Ifremer Deep Water Basin within the framework of the MaRINET 2 project. The support structure consists in ... 
Mooring system monitoring of offshore renewable energy floating platforms
(2019)An appropriate schedule of the operations for the maintenance (both long and short term) of offshore renewable energy devices can be a crucial key factor for assessing the economic viability of marine energy projects. ... 
Shearthickening of a noncolloidal suspension with a viscoelastic matrix
(2019)In this work we study the rheology of a noncolloidal suspension of rigid spherical particles interacting with a viscoelastic matrix. Threedimensional numerical simulations under shear flow are performed using the ... 
Reducing variability in the cost of energy of ocean energy arrays
(201909)Variability in the predicted cost of energy of an ocean energy converter array is more substantial than for other forms of energy generation, due to the combined stochastic action of weather conditions and failures. If the ... 
Molecular Dynamics Test of the StressThermal Rule in Polyethylene and Polystyrene Entangled Melts
(20200203)Anisotropic thermal transport induced by deformation and the linear relation between the thermal conductivity and stress tensors, also known as the stressthermal rule (STR), are tested via molecular dynamics simulations ... 
Small scale experimental validation of a numerical model of the HarshLab2.0 floating platform coupled with a nonlinear lumped mass catenary mooring system
(20200315)When focusing on mooring system numerical modelling, the efforts are focused on validating models that increase the accuracy and maintain the computation time under reasonable limits. In this paper an approach for modelling ... 
Numerical investigation of the rheological behavior of a dense particle suspension in a biviscous matrix using a lubrication dynamics method
(20200519)This paper presents a numerical approach to predict the rheology of dense noncolloidal suspensions with a biviscous matrix. A biviscous matrix is characterized as a fluid with two shear rate dependent viscosities i.e. one ... 
A comparison of numerical approaches for the design of mooring systems for wave energy converters
(20200701)This paper analyses the numerical outcome of applying three different wellknown mooring design approaches to a floating wave energy converter, moored by means of four catenary lines. The approaches include: a linearized ... 
Review of systems engineering (Se) methods and their application to wave energy technology development
(20201001)The design of effective and economically viable wave energy devices involves complex decision‐making about the product based on conceptual design information, including stakeholder requirements, functions, components and ... 
Dynamics and rheology of a suspension of superparamagnetic 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 superparamagnetic 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
(20210101)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
(20210101)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, ... 
Frequency domain modelling of a coupled system of floating structure and mooring Lines: An application to a wave energy converter
(20210115)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 ... 
A conservative lubrication dynamics method for the simulation of dense noncolloidal suspensions with particle spin
(20210215)In this paper, a novel Fast Lubrication Dynamics method that can efficiently simulate dense noncolloidal suspensions is proposed. To reduce the computational cost in the presented methodology, interparticle lubricationbased ... 
Thermal conductivity of amorphous polymers and its dependence on molecular weight
(20210716)Thermal conductivity is an important transport property governing the performance of polymers in nonisothermal conditions. Nevertheless, its dependence on molecular weight M has not been the subject of as much attention ... 
Metallic microswimmers driven up the wall by gravity
(20210721)Experiments on autophoretic bimetallic nanorods propelling within a fuel of hydrogen peroxide show that tailheavy swimmers preferentially orient upwards and ascend along inclined planes. We show that such gravitaxis is ... 
Modeling the effect of flowinduced mechanical erosion during coffee filtration
(202109)The espresso extraction process involves a complex transport inside a geometrychanging porous medium. Large solid grains forming the majority of the porous medium can migrate, swell, consolidate and they can also ...