6 papers
Structure and dynamics of hydrodynamically interacting finite-size Brownian particles in a spherical cavity: spheres and cylinders
Jiyuan Li, Xikai Jiang, Abhinendra Singh +3
The structure and dynamics of confined suspensions of particles of arbitrary shape is of interest in multiple disciplines, from biology to engineering. Theoretical studies are ofte…
Shape induced segregation and anomalous particle transport under spherical confinement
Abhinendra Singh, Jiyuan Li, Xikai Jiang +3
Colloid or nanoparticle mobility under confinement is of central importance to a wide range of physical and biological processes. Here, we introduce a minimal model of particles in…
Shear thickening and jamming of dense suspensions: the "roll" of friction
Abhinendra Singh, Christopher Ness, Ryohei Seto +2
Particle-based simulations of discontinuous shear thickening (DST) and shear jamming (SJ) suspensions are used to study the role of stress-activated constraints, with an emphasis o…
Stress fluctuations and shear thickening in dense granular suspensions
Qin Xu, Abhinendra Singh, Heinrich M. Jaeger
We experimentally investigate the rheology and stress fluctuations of granules densely suspended in silicone oil. We find that both thickening strength and stress fluctuations sign…
Interaction network analysis in shear thickening suspensions
Marcio Gameiro, Abhinendra Singh, Lou Kondic +2
Dense, stabilized, frictional particulate suspensions in a viscous liquid undergo increasingly strong continuous shear thickening (CST) as the solid packing fraction, , increase…
Micro-macro transition and simplified contact models for wet granular materials
Sudeshna Roy, Abhinendra Singh, Stefan Luding +1
Wet granular materials in a quasi-static steady state shear flow have been studied with discrete particle simulations. Macroscopic quantities, consistent with the conservation laws…