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Title: Segregation forces in dense granular flows: closing the gap between single intruders and mixtures
Using simulations and a virtual-spring-based approach, we measure the segregation force, $$F_{seg},$$ in size-bidisperse sphere mixtures over a range of concentrations, particle-size ratios and shear rates to develop a semiempirical model for $$F_{seg}$$ that extends its applicability from the well-studied non-interacting intruders regime to finite-concentration mixtures where cooperative phenomena occur. The model predicts the concentration below which the single-intruder assumption applies and provides an accurate description of the pressure partitioning between species.  more » « less
Award ID(s):
1929265
PAR ID:
10352989
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
Journal of Fluid Mechanics
Volume:
935
ISSN:
0022-1120
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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