Stress-strain rate relation in plug-free flow of dense granular fluids: A first-principles derivation
Published version
Peer-reviewed
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Repository DOI
Change log
Authors
Schwartz, Moshe
Blumenfeld, Raphael
Abstract
We derive the macroscopic stress tensor for plug-free dense granular flow, using a first-principles coarse-graining of the inter-granular forces. The derivation is based on the assumption, which defines the da Vinci Fluid model, that the inter-granular interactions are dominated by normal contact forces and solid friction. An explicit form for the stress -- strain rate relation is obtained, providing closure for the flow equations of dense granular fluids and improves on existing models, which are also based on solid friction as the dominant drag mechanism.
Description
Keywords
cond-mat.stat-mech, cond-mat.stat-mech, cond-mat.soft
Journal Title
PHYSICAL REVIEW E
Conference Name
Journal ISSN
2470-0045
2470-0053
2470-0053
Volume Title
98
Publisher
American Physical Society (APS)
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All rights reserved