Physics – Fluid Dynamics
Scientific paper
2010-12-02
Physics
Fluid Dynamics
5 pages, 4 figures, title changed, a few content changes took place for clarification upon referees request. This work was fin
Scientific paper
10.1103/PhysRevE.84.046315
Assuming perfect collision efficiency, we demonstrate that turbulence can initiate and sustain the rapid growth of very small water droplets in air even when these droplets are too small to cluster, and even without having to take gravity and small-scale intermittency into account. This is because the range of local Stokes numbers of identical droplets in the turbulent flow field is broad enough even when small-scale intermittency is neglected. This demonstration is given for turbulence which is one order of magnitude less intense than is typical in warm clouds but with a volume fraction which, even though small, is nevertheless large enough for an estimated a priori frequency of collisions to be ten times larger than in warm clouds. However, the time of growth in these conditions turns out to be one order of magnitude smaller than in warm clouds.
Dallas Vassilios
Vassilicos John Christos
No associations
LandOfFree
Rapid growth of cloud droplets by turbulence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Rapid growth of cloud droplets by turbulence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid growth of cloud droplets by turbulence will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-513005