10 papers
Elastic wakes mediate collective viscoelastic fluid-structure interactions in side-by-side cantilever arrays
Arisa Yokokoji, Amy Q. Shen, Simon J. Haward
Fluid-structure interaction (FSI) in viscoelastic flows past deformable structures at low Reynolds numbers remains poorly understood, despite its relevance to biological systems su…
Numerical analysis of capillarity-driven thinning rheometry for polydisperse polymer solutions
Isaac Pincus, Vincenzo Calabrese, Simon J. Haward +1
Liquid bridges of polymer solutions that are self-thinning due to the action of capillarity undergo a transition from Newtonian-like linear thinning to exponential elastocapillary…
Polymer extension at stagnation points governs flow thickening of polymer solutions in ordered porous media
Emily Y. Chen, Simon J. Haward, Amy Q. Shen +1
Polymer solutions exhibit anomalous flow thickening -- marked by an abrupt increase in the macroscopic flow resistance -- above a threshold flow rate in a porous medium, but not in…
Flow-history-dependent orientational relaxation in dilute polydisperse colloidal rod suspensions
Yuto Yokoyama, Vincenzo Calabrese, Fabian Hillebrand +3
Orientation and relaxation dynamics of rod-like colloids under flow govern the optical and mechanical properties of many emerging soft materials. In polydisperse suspensions, parti…
Effects of fluid rheology and geometric disorder on the enhanced resistance of viscoelastic flows through porous media
Simon J Haward, Amy Q Shen
Recent works reveal the importance of chaotic flow fluctuations as a mechanism for the enhanced resistance observed in viscoelastic porous media flows, and also show how chaotic fl…
Colloidal rod dynamics under large amplitude oscillatory extensional flow
Steffen M. Recktenwald, Vincenzo Calabrese, Amy Q. Shen +2
We perform a combined experimental and theoretical investigation of the orientational dynamics of rod-like colloidal particles in dilute suspension as they are subjected to a time-…