134 citations · 1k across the 44 of their papers we have counts for
48 papers
Dissipation and microstructure in sheared active suspensions of squirmers
Zhouyang Ge, Gwynn J. Elfring
We study the energy expenditure and structural correlations in semi-dilute to concentrated suspensions of squirmers using active fast Stokesian dynamics simulations. Specifically,…
Nonmonotonic diffusion in sheared active suspensions of squirmers
Zhouyang Ge, John F. Brady, Gwynn J. Elfring
We investigate how shear influences the dynamics of active particles in dilute to concentrated suspensions. Using apolar active suspensions of squirmers as model systems, we show h…
Durotaxis in viscoelastic fluids
Vaseem A. Shaik, Jiahao Gong, Gwynn J. Elfring
Organisms often swim through fluids that are spatially inhomogeneous. If the fluids are polymeric, gradients in polymer concentration may lead to gradients in both fluid viscosity…
Equilibrium states of a liquid bridge between flexible sheets
Mouad Boudina, Gwynn J. Elfring
We study equilibrium states of a drop between flexible sheets clamped on both ends. Revisiting first the case of parallel sheets, we find multiple equilibria which we classify in a…
Mixing by squirmers in stratified fluids
Vaseem A. Shaik, Gwynn J. Elfring
We find the mixing induced by a small swimming organism in a density stratified fluid. We model the swimmer as a spherical squirmer and quantify mixing through a mixing efficiency…
Adaptive design of experiments methodology for noise resistance with unreplicated experiments
Lucas Caparini, Gwynn J. Elfring, Mauricio Ponga
A new gradient-based adaptive sampling method is proposed for design of experiments applications which balances space filling, local refinement, and error minimization objectives w…