163 citations · 312 across the 9 of their papers we have counts for
7 papers · 1 filter
Flow rectification in loopy network models of bird lungs
Quynh M. Nguyen, Anand U. Oza, Joanna Abouezzi +4
We demonstrate flow rectification, valveless pumping or AC-to-DC conversion in macroscale fluidic networks with loops. Inspired by the unique anatomy of bird lungs and the phenomen…
A filamentary cascade model of the inertial range
Stephen Childress, Andrew G. Gilbert
This paper develops a simple model of the inertial range of turbulent flow, based on a cascade of vortical filaments. A binary branching structure is proposed, involving the splitt…
Eroding dipoles and vorticity growth for Euler flows in : The hairpin geometry as a model for finite-time blowup
Stephen Childress, Andrew D. Gilbert
A theory of an eroding "hairpin" vortex dipole structure in three dimensions is developed, extending our previous study of an axisymmetric eroding dipole without swirl. The hairpin…
Eroding dipoles and vorticity growth for Euler flows in I. Axisymmetric flow without swirl
Stephen Childress, Andrew D. Gilbert, Paul Valiant
A review of analyses based upon anti-parallel vortex structures suggests that structurally stable vortex structures with eroding circulation may offer a path to the study of rapid…
Stirring by squirmers
Zhi Lin, Jean-Luc Thiffeault, Stephen Childress
We analyse a simple 'Stokesian squirmer' model for the enhanced mixing due to swimming micro-organisms. The model is based on a calculation of Thiffeault & Childress [Physics Lette…
Stirring by swimming bodies
Jean-Luc Thiffeault, Stephen Childress
We consider the stirring of an inviscid fluid caused by the locomotion of bodies through it. The swimmers are approximated by non-interacting cylinders or spheres moving steadily a…