Crossover from Jamming to Clogging Behaviours in Heterogeneous Environments
Jamming describes a transition from a flowing or liquid state to a solid or rigid state in a loose assembly of particles such as grains or bubbles. In contrast, clogging describes the ceasing of the flow of particulate matter through a bottleneck. It is not clear how to distinguish jamming from clogging, nor is it known whether they are distinct phenomena or fundamentally the same. Here, we examine an assembly of disks moving through a random obstacle array and identify a transition from clogging to jamming behavior as the disk density increases. The clogging transition has characteristics of an absorbing phase transition, with the disks evolving into a heterogeneous phase-separated clogged state after a critical diverging transient time. In contrast, jamming is a rapid process in which the disks form a homogeneous motionless packing, with a rigidity length scale that diverges as the jamming density is approached.
- Authors:
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[1]
; [1]
;
[2]
; [2]
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Babes-Bolyai Univ., Cluj-Napoca (Romania). Faculty of Mathematics and Computer Science
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Report Number(s):
- LA-UR-17-28928
Journal ID: ISSN 2045-2322
- Grant/Contract Number:
- AC52-06NA25396; 20170147ER
- Type:
- Published Article
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Research Org:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org:
- USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 97 MATHEMATICS AND COMPUTING; 36 MATERIALS SCIENCE
- OSTI Identifier:
- 1458584
- Alternate Identifier(s):
- OSTI ID: 1460650