Data-driven upscaling of orientation kinematics in suspensions of rigid fibres
Article dans une revue avec comité de lecture
Auteur
CUETO, Elías
95355 Universidad de Zaragoza = University of Zaragoza [Saragossa University] = Université de Saragosse
161327 Aragón Institute of Engineering Research [Zaragoza] [I3A]
95355 Universidad de Zaragoza = University of Zaragoza [Saragossa University] = Université de Saragosse
161327 Aragón Institute of Engineering Research [Zaragoza] [I3A]
KEUNINGS, Roland
92863 Université Catholique de Louvain = Catholic University of Louvain [UCL]
130718 Centre for systems engineering and applied mechanics [Louvain] [CESAME]
197411 Institute of Information and Communication Technologies, Electronics and Applied Mathematics [ICTEAM]
92863 Université Catholique de Louvain = Catholic University of Louvain [UCL]
130718 Centre for systems engineering and applied mechanics [Louvain] [CESAME]
197411 Institute of Information and Communication Technologies, Electronics and Applied Mathematics [ICTEAM]
ABISSET-CHAVANNE, Emmanuelle
10921 Institut de Recherche en Génie Civil et Mécanique [GeM]
111023 École Centrale de Nantes [ECN]
445111 Institut de Calcul Intensif [ICI]
10921 Institut de Recherche en Génie Civil et Mécanique [GeM]
111023 École Centrale de Nantes [ECN]
445111 Institut de Calcul Intensif [ICI]
Date
2018Journal
Computer Modeling in Engineering and SciencesRésumé
Describing the orientation state of the particles is often critical in fibre suspension applications. Macroscopic descriptors, the so-called second-order orientation tensor (or moment) leading the way, are often preferred due to their low computational cost. Closure problems however arise when evolution equations for the moments are derived from the orientation distribution functions and the impact of the chosen closure is often unpredictable. In this work, our aim is to provide macroscopic simulations of orientation that are cheap, accurate and closure-free. To this end, we propose an innovative data-based approach to the upscaling of orientation kinematics in the context of fibre suspensions. Since the physics at the microscopic scale can be modelled reasonably enough, the idea is to conduct accurate offline direct numerical simulations at that scale and to extract the corresponding macroscopic descriptors in order to build a database of scenarios. During the online stage, the macroscopic descriptors can then be updated quickly by combining adequately the items from the database instead of relying on an imprecise macroscopic model. This methodology is presented in the well-known case of dilute fibre suspensions (where it can be compared against closure-based macroscopic models) and in the case of suspensions of confined or electrically-charged fibres, for which state-of-the-art closures proved to be inadequate or simply do not exist.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lecturePEREZ, Marta; SCHEUER, Adrien; KEUNINGS, Roland; ABISSET-CHAVANNE, Emmanuelle; AMMAR, Amine; CHINESTA SORIA, Francisco (Springer Verlag, 2019)When addressing the flow of concentrated suspensions composed of rods, dense clusters are observed. Thus, the adequate modelling and simulation of such a flow requires addressing the kinematics of these dense clusters and ...
-
Article dans une revue avec comité de lectureSCHEUER, Adrien; KEUNINGS, Roland; ABISSET-CHAVANNE, Emmanuelle; CHINESTA SORIA, Francisco (Elsevier Masson, 2018)The properties of reinforced polymers strongly depend on the microstructural state, that is, the orientation state of the fibres suspended in the polymeric matrix, induced by the forming process. Understanding flow-induced ...
-
Article dans une revue avec comité de lectureIBÁÑEZ, Rubén; SCHEUER, Adrien; HUERTA, Antonio; KEUNINGS, Roland; ABISSET-CHAVANNE, Emmanuelle; CHINESTA SORIA, Francisco (Springer Verlag, 2018)The numerical modelling of forming processes involving the flow of foams requires taking into account the different problem scales. Thus, in industrial applications a macroscopic approach is suitable, whereas the macroscopic ...
-
Article dans une revue avec comité de lectureSCHEUER, Adrien; GRÉGOIRE, Guillaume; KEUNINGS, Roland; ABISSET-CHAVANNE, Emmanuelle; CHINESTA SORIA, Francisco (ELSEVIER, 2020)Simulations of flows containing non-spherical particles (fibres or ellipsoids) rely on the knowledge of the equation governing the particle motion in the flow. Most models used nowadays are based on the pioneering work of ...
-
Article dans une revue avec comité de lectureAMMAR, Amine; ABISSET-CHAVANNE, Emmanuelle; CHINESTA SORIA, Francisco; KEUNINGS, Roland (Springer Verlag, 2016)Permeability is the fundamental macroscopic material property needed to quantify the flow in a fibrous medium viewed as a porous medium. Composite processing models require the permeability as input data to predict flow ...