Energy flow between two hydrodynamically coupled particles kept at different effective temperatures

Dynamic regimes of hydrodynamically coupled self - propelling particles

– We analyze the collective dynamics of self-propelling particles (spps) which move at small Reynolds numbers including the hydrodynamic coupling to the suspending solvent through numerical simulations. The velocity distribution functions show marked deviations from Gaussian behavior at short times, and the mean square displacement at long times shows a transition from diffusive to ballistic mo...

Casimir forces between cylinders at different temperatures

The long-time dynamics of two hydrodynamically-coupled swimming cells.

Swimming microorganisms such as bacteria or spermatozoa are typically found in dense suspensions, and exhibit collective modes of locomotion qualitatively different from that displayed by isolated cells. In the dilute limit where fluid-mediated interactions can be treated rigorously, the long-time hydrodynamics of a collection of cells result from interactions with many other cells, and as such...

Energy harvesting through gas dynamics in the free molecular flow regime between structured surfaces at different temperatures.

For a gas confined between surfaces held at different temperatures the velocity distribution shows a significant deviation from the Maxwell distribution when the mean free path of the molecules is comparable to or larger than the channel dimensions. If one of the surfaces is suitably structured, this nonequilibrium distribution can be exploited for momentum transfer in a tangential direction be...

Hydrodynamically Confined Flow Devices