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Article: Collisions of Cloud Droplets in a Turbulent Flow. Part IV: Droplet Hydrodynamic Interaction
- Article from:
- Journal of the Atmospheric Sciences
- Article date:
- July 1, 2007
- Author:
CopyrightCopyright American Meteorological Society Jul 2007. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
The paper presents a computationally accurate and efficient method for calculation of cloud droplets' collision efficiency in a turbulent flow with the properties typical of atmospheric clouds. According to Part III, the statistical properties of a turbulent flow are represented b
y a set of noncorrelated samples of turbulent velocity gradients and Lagrangian accelerations. Long series of these samples were generated for turbulent parameters typical of different atmospheric clouds. Each sample can be assigned to a certain point of the turbulent flow. Each such point can be surrounded by a small elementary volume with the linear length scale of the Kolmogorov length scale, in which ...