Effect of turbulence on coagulational growth of cloud droplets Academic Article uri icon

abstract

  • We investigate the effect of turbulence on the coagulational growth of um-sized droplets by high-resolution numerical simulations with a well resolved Kolmogorov scale, assuming a collision and coalescence efficiency of unity. We approximate the droplet dynamics using a super-particle approach. The effects of gravity and condensation are not included in the simulations. We show that the time evolution of the shape of the droplet-size distribution due to turbulence-induced coagulation depends strongly on the turbulent energy-dissipation rate, but only weakly on the Reynolds number. Subjects: Atmospheric and Oceanic Physics (physics. ao-ph) Report number: NORDITA-2017-126 Cite as: arXiv: 1711.10062 [physics. ao-ph](or arXiv: 1711.10062 v1 [physics. ao-ph] for this version) Submission history From: Xiangyu Li [view email][v1] Tue, 28 Nov 2017 00: 23: 47 GMT (88kb)

publication date

  • November 28, 2017