Nicolás Estrada
6 records found
1
Authored
Polydispersity effect on dry and immersed granular collapses
An experimental study
Granular materials are used in several fields and in a wide variety of processes. An important feature of these materials is the diversity of grain sizes, commonly referred to as polydispersity. When granular materials are sheared, they exhibit a predominant small elastic rang ...
Granular column collapse
The role of particle size polydispersity on the velocity and runout
Geophysical mass flows involve particles of different sizes, a property termed polydispersity. The granular column collapse is a simplified experiment for studying transitional granular flows. Our research focuses on the role that polydispersity has on the velocity and runout ...
By means of the Discrete Element Method, we investigate the relationship between the power-law exponent of the grain size distribution (GSD) and the mobility of granular transitional flows. This is done with the aim of testing a recently posed hypothesis, suggesting that high ...