Work

Characterizing flows with an instrumented particle measuring Lagrangian accelerations

Year: 2013

Type: article

Abstract: In this paper we present a novel Lagrangian measurement technique: an instrumented particle which continuously transmits the force/acceleration acting on it as it is advected in a flow. We have developed signal processing methods to extract information on the flow from the acceleration signal transmitted by the particle. Notably, we are able to characterize the force acting on the particle and identify the presence of a permanent large-scale vortex structure. Our technique provides a fast, robust and efficient tool to characterize flows and is particularly suited to obtain Lagrangian statistics along long trajectories or in cases where optical measurement techniques are not or hardly applicable.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/15/1/015018

Authors: Robert Zimmermann, Lionel Fiabane, Yoann Gasteuil, Romain Volk, Jean-François Pinton

Institutions: École Normale Supérieure de Lyon, Centre National de la Recherche Scientifique, Laboratoire de Physique de l'ENS de Lyon

Language: English

Topic: Fluid Dynamics and Turbulent Flows

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,610

Funder: Agence Nationale de la Recherche