Cooling and aggregation in wet granulates - Condensed Matter > Soft Condensed MatterReportar como inadecuado




Cooling and aggregation in wet granulates - Condensed Matter > Soft Condensed Matter - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: Wet granular materials are characterized by a defined bond energy in theirparticle interaction such that breaking a bond implies an irreversible loss ofa fixed amount of energy. Associated with the bond energy is a nonequilibriumtransition, setting in as the granular temperature falls below the bond energy.The subsequent aggregation of particles into clusters is shown to be aself-similar growth process with a cluster size distribution that obeysscaling. In the early phase of aggregation the clusters are fractals withD f=2, for later times we observe gelation. We use simple scaling arguments toderive the temperature decay in the early and late stages of cooling and verifyour results with event-driven simulations.



Autor: Stephan Ulrich, Timo Aspelmeier, Klaus Roeller, Axel Fingerle, Stephan Herminghaus, Annette Zippelius

Fuente: https://arxiv.org/







Documentos relacionados