| Issue |
EPL
Volume 123, Number 2, July 2018
|
|
|---|---|---|
| Article Number | 24001 | |
| Number of page(s) | 7 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/123/24001 | |
| Published online | 20 August 2018 | |
Characterisation of flexible fibre deformations in turbulence
Aix Marseille Univ, CNRS, Centrale Marseille, IRPHE - Marseille, France
(a) gautier.verhille@irphe.univ-mrs.fr
Received: 5 April 2018
Accepted: 23 July 2018
The transport of deformable objects by a turbulent flow is common in environmental sciences which are interested, for instance, in the dynamics of plankton in the ocean, and in industry, such as the papermaking or textile industries. In this study, the deformations of flexible fibres in homogeneous isotropic turbulence are experimentally and numerically investigated, focusing on the local curvature κ. By comparing our results to the predictions for worm-like chain polymers in an ideal solvent, we are able to identify the role of the spatial and temporal correlations of the turbulent forcing. In particular, we show that these correlations are responsible for a straightening of long fibres which become statistically less distorted by turbulence as their length increases.
PACS: 47.27.-i – Turbulent flows / 47.55.Kf – Particle-laden flows / 47.57.Ng – Polymers and polymer solutions
© EPLA, 2018
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.