5 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…
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…
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…