Abrupt growth of large aggregates by correlated coalescences in turbulent flow

Autor:	Bec, Jeremie, Ray, Samriddhi Sankar, Saw, Ewe Wei, Homann, Holger
Rok vydání:	2015
Předmět:	Physics - Fluid Dynamics Condensed Matter - Statistical Mechanics
Zdroj:	Phys. Rev. E 93, 031102 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevE.93.031102
Popis:	Smoluchowski's coagulation kinetics is here shown to fail when the coalescing species are dilute and transported by a turbulent flow. The intermittent Lagrangian motion involves correlated violent events that lead to an unexpected rapid occurrence of the largest particles. This new phenomena is here quantified in terms of the anomalous scaling of turbulent three-point motion, leading to significant corrections in macroscopic processes that are critically sensitive to the early-stage emergence of large embryonic aggregates, as in planet formation or rain precipitation. Comment: 5 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1507.02034 Zobrazit plný text záznamu View this record from Arxiv