Droplet condensation in turbulent flowsA. Celani1, G. Falkovich2, A. Mazzino3 and A. Seminara1, 3
1 CNRS, INLN - 1361 Route des Lucioles, 06560 Valbonne, France
2 Physics of Complex Systems, Weizmann Institute of Science - Rehovot 76100, Israel
3 INFM, Dipartimento di Fisica, Università degli Studi di Genova and INFN, Sezione di Genova - Via Dodecaneso 33, 16146 Genova, Italy
received 28 January 2005; accepted in final form 19 April 2005
published online 25 May 2005
The problem of droplet growth by condensation in a turbulent flow of nearly saturated vapour is addressed theoretically and numerically. We show how the presence of an underlying turbulent velocity field induces a correlation between droplet trajectories and supersaturation. This leads both to the enhancement of the droplet growth rate and to a fast spreading of the droplet size distribution.
47.27.Eq - Turbulence simulation and modeling.
47.27.Gs - Isotropic turbulence; homogeneous turbulence.
© EDP Sciences 2005