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15 mins
Rapid growth of Coalescing Droplets and Observation of Fine Structures in Turbulent Flow
Ewe-wei Saw, Jeremie Bec, Holger Homann, Samriddhi Sankar Ray, Bérengère DUBRULLE, François Daviaud
Session: Atmospheric turbulence 4
Session starts: Wednesday 26 August, 13:30
Presentation starts: 14:00
Room: Room C

Ewe-wei Saw ()
Jeremie Bec ()
Holger Homann ()
Samriddhi Sankar Ray ()
Bérengère DUBRULLE ()
François Daviaud ()

I will present our results on size-growth dynamics of coalescing droplets in simulation of isotropic turbulent flow. In the short time limit, we observe very fast growth due to correlations of these droplets which can be related to the interaction between their inertia to turbulent advection (this work is done with colleagues at affiliations 1 \& 2). In a later part, I will describe our attempt to experimentally observe the intermittent fine structures of turbulence flow using high resolution Particle Image Velocimetry (PIV) technique (this work is done with colleagues at affiliation 3).