3 papers
physics.flu-dyn2026
Longitudinal particle separation
Siluvai Antony Selvan, Rahil N Valani, Brendan Harding +1
Owing to inertial effects, the flow through a three-dimensional curved duct focuses finite-sized spherical particles in the two-dimensional cross-section onto either stable equilib…
physics.flu-dyn2025
A Hamiltonian formulation for the motion of an active spheroidal particle suspended in laminar straight duct flow
Brendan Harding, Rahil N. Valani, Yvonne M. Stokes
We analyse a generalisation of Zöttl and Stark's model of active spherical particles [Phys. Rev. Lett. 108, 218104 (2012)] and prolate spheroidal particles [Eur. Phys. J. E 36(1),…
physics.flu-dyn2024
Active particle motion in Poiseuille flow through rectangular channels
Rahil N. Valani, Brendan Harding, Yvonne M. Stokes
We investigate the dynamics of a point-like active particle suspended in fluid flow through a straight channel. For this particle-fluid system, we derive a constant of motion for a…