Physics
Heterogeneous structure of granular aggregates with capillary interactions
Document Type
Article
Abstract
We investigate the spatial structure of cohesive granular matter with spheres floating at an air-liquid interface that form disordered close packings with pores in between. The interface is slowly lowered in a conical container to uniformly compress and study the system as a function of area fraction φ. We find that the free area distributions associated with Voronoi cells show significant exponential tails indicating greater heterogeneity compared with random distributions at low φ with a crossover towards a Γ distribution as φ is increased. Further, we find significant short range order as measured by the radial correlation function and the orientational order parameter even at low and intermediate φ, which is absent when particles interact only sterically. © 2010 The American Physical Society.
Publication Title
Physical Review Letters
Publication Date
8-23-2010
Volume
105
Issue
9
ISSN
0031-9007
DOI
10.1103/PhysRevLett.105.098002
Repository Citation
Berhanu, Michael and Kudrolli, Arshad, "Heterogeneous structure of granular aggregates with capillary interactions" (2010). Physics. 121.
https://commons.clarku.edu/faculty_physics/121
