3 citations · 5 across the 10 of their papers we have counts for
11 papers
Shear-induced mechanical yielding controls cluster morphology and dynamics in aggregating non-Brownian suspensions
Jae Hwan Jeong, Donald L. Koch, Sarah Hormozi
In sheared aggregating suspensions, flow drives both the formation and breakage of particle clusters, whose dynamic evolution influences transport and rheological properties. Under…
An inertial slender-body theory
Anmol Joshi, Anubhab Roy, Arjun Sharma +1
We present a fully inertial slender-body theory (SBT) that incorporates the effect of fluid inertia on the scale of the length (the "outer" region) as well as the characteristic di…
Probing the many-body energy landscape of a soft glass with graph neural networks
Mehryar Jannesari Ghomsheh, Donald L. Koch, Sarah Hormozi
Many-body interactions govern the complex behavior of many amorphous materials, from metallic glasses to biological tissues, yet are often replaced by pairwise additive frameworks…
Simulating the swimming motion of a flagellated bacterium in a microstructured bio-fluid
Arjun Sharma, Sabarish V. Narayanan, Sarah Hormozi +1
We develop a numerical framework to simulate the locomotion of a flagellated bacterium with a spheroidal head (such as Escherichia coli) in biological fluids like mucus, which are…
Stress analysis of dilute particle suspensions in non-Newtonian fluids with efficient evaluation in the weakly non-Newtonian limit
Arjun Sharma, Donald L. Koch
We present a semi-analytical framework to compute the suspension stress in dilute particle-laden non-Newtonian fluids, separating Newtonian and non-Newtonian contributions. The ens…
Extensional rheology of dilute suspensions of spheres in polymeric liquids
Arjun Sharma, Donald L. Koch
The extensional rheology of dilute suspensions of spheres in viscoelastic or polymeric liquids is studied computationally. At low polymer concentration (c) and Deborah number (De),…
Sedimentation and shear-induced dynamics of spheroids in fluids with spatial viscosity variations
Arjun Sharma, Peter A. Bosler, Rama Govindarajan +1
A generalized reciprocal theorem is used to relate the force and torque induced on a particle in an inertia-less fluid with small variation in viscosity to integrals involving Stok…
Criticality of the viscous to inertial transition near jamming in non-Brownian suspensions
Nishanth Murugan, Donald Koch, Sarah Hormozi
In this work, we use a Discrete Element Method (DEM) to explore the viscous to inertial shear thickening transition of dense frictionless non-Brownian suspensions close to jamming.…
A swimming bacterium in a two-fluid model of a polymer solution
Sabarish V. Narayanan, Donald L. Koch, Sarah Hormozi
We analyse the motion of a flagellated bacterium in a two-fluid medium using slender body theory. The two-fluid model is useful for describing a body moving through a complex fluid…
Finite difference method in prolate spheroidal coordinates for freely suspended spheroidal particles in linear flows of viscous and viscoelastic fluids
Arjun Sharma, Donald L. Koch
A finite difference scheme is used to develop a numerical method to solve the flow of an unbounded viscoelastic fluid with zero to moderate inertia around a prolate spheroidal part…
Rotation of a fiber in simple shear flow of a dilute polymer solution
Arjun Sharma, Donald L. Koch
The motion of a freely rotating prolate spheroid in a simple shear flow of a dilute polymeric solution is examined in the limit of large particle aspect ratio, . A regular pertu…