4 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…
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…
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…