3D conformation of a flexible fiber in a turbulent flow - Université Clermont Auvergne Accéder directement au contenu
Article Dans Une Revue Experiments in Fluids Année : 2016

3D conformation of a flexible fiber in a turbulent flow

Résumé

A growing number of studies is devoted to anisotropic particles in turbulent flows. In most cases the particles are assumed to be rigid and their deformations are neglected. We present an adaptation of classical computer vision tools to reconstruct from two different images the 3D conformation of a fiber distorted by the turbulent fluctuations in a von Kármán flow. This technique allows us notably to characterize the fiber deformation by computing the correlation function of the orientation of the tangent vector. This function allows us to tackle the analogy between polymers and flexible fibers proposed by Brouzet et al. (Phys. Rev. Lett. 112(7) 074501 (2014)). We show that this function depends on an elastic length e which characterizes the particle flexibility, as is the case for polymers, but also on the fiber length L, contrary to polymers.
Fichier principal
Vignette du fichier
3D_fibers_accepted_version.pdf (1.02 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01457104 , version 1 (06-02-2017)

Identifiants

Citer

Gautier Verhille, Adrien Bartoli. 3D conformation of a flexible fiber in a turbulent flow. Experiments in Fluids, 2016, 57, ⟨10.1007/s00348-016-2201-1⟩. ⟨hal-01457104⟩
138 Consultations
179 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More