Europhys. Lett.
Volume 70, Number 6, June 2005
Page(s) 775 - 781
Section Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics
Published online 25 May 2005
Europhys. Lett., 70 (6), pp. 775-781 (2005)
DOI: 10.1209/epl/i2005-10040-4

Droplet condensation in turbulent flows

A. 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