5 papers
Hydrodynamic cascade drives tumbling in sheared colloidal rod suspensions
Lucas H. P. Cunha, Paul F. Salipante, Peter D. Olmsted +1
Modeling the dynamics of colloidal rods remains a central challenge in soft-matter physics due to the anisotropic and long-ranged nature of their interactions. Hydrodynamic interac…
Elastic turbulence in highly entangled polymers and wormlike micelles
Theo A. Lewy, Suzanne M. Fielding, Peter D. Olmsted +1
We show theoretically that an initially homogeneous planar Couette flow of a concentrated polymeric fluid is linearly unstable to the growth of two-dimensional (2D) perturbations,…
A Smoluchowski equation for a sheared suspension of frictionally interacting rods
Chris Quiñones, Genevieve Quiñones, Peter D. Olmsted
In this work we develop constitutive equations for a dense, sheared suspension of frictionally interacting rods by applying Onsager's variational method as formulated by Doi. We tr…
The roles of elasticity and dimension in liquid-gel phase separation
Shichen Wang, Peter D. Olmsted
We compare six elastic models for polymer networks in the context of phase separation within a gel, including a new model that combines the finite extensible Arruda-Boyce model and…
Thermodynamics of microphase separation in a swollen, strain-stiffening polymer network
Carla Fernández-Rico, Robert W. Style, Stefanie Heyden +3
Elastic MicroPhase Separation (EMPS) provides a simple route to create soft materials with homogeneous microstructures by leveraging the supersaturation of crosslinked polymer netw…