Coarsening dynamics of three dimensional levitated foams: from wet to dry

Autor:	Isert, N., Maret, G., Aegerter, C. M.
Rok vydání:	2012
Předmět:	Condensed Matter - Soft Condensed Matter Condensed Matter - Statistical Mechanics
Druh dokumentu:	Working Paper
Popis:	We study diamagnetically levitated foams with widely different liquid fractions. Due to the levitation, drainage is effectively suppressed and the dynamics is driven by the coarsening of the foam bubbles. For dry foams, the bubble size increases as the square root of foam age, as expected from a generalized von Neumann law. At higher liquid content, the behavior changes to that of Ostwald ripening where the bubbles grow with the 1/3 power of the age. Using Diffusing Wave Spectroscopy we study the local dynamics in the different regimes and find diffusive behavior for dry foams and kinetic behavior for wet foams. Comment: 4 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1211.0473 Zobrazit plný text záznamu View this record from Arxiv