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Session: Lagrangian aspects of turbulence 2
Session starts: Thursday 27 August, 10:30
Presentation starts: 11:15
Room: Room H

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Aamir Ali ()
Emmanuel Lance Christopher VI Plan ()
Samriddhi Sankar Ray ()
Dario Vincenzi ()

Abstract:
We study the Lagrangian dynamics of semi-flexible particles in laminar as well as in homogeneous and isotropic turbulent flows by means of analytically solvable stochastic models and direct numerical simulations. The statistics of the bending angle is qualitatively different in laminar and turbulent flows and exhibits a strong dependence on the topology of the velocity field. In particular, in two-dimensional turbulence, particles are either found in a fully extended or in a fully folded configuration; in three dimensions, the predominant configuration is the fully extended one.