4 papers
Caustics of finitely dense inertial particles
C. Rajarshi, Rama Govindarajan
Estimating collision rates is of immense importance in particle-laden flows. An economical way of doing this is to directly identify incidences of caustics, or extreme clustering,…
Active Caustics
Rahul Chajwa, Rajarshi, Rama Govindarajan +1
Inertial particles (IPs) in vortical fluid flow cluster strongly, forming singular structures termed caustics for their resemblance to focal surfaces in optics. Here we show that s…
Dynamics and clustering of sedimenting disc lattices
Harshit Joshi, Rahul Chajwa, Sriram Ramaswamy +2
Uniform arrays of particles tend to cluster as they sediment in viscous fluids. Shape anisotropy of the particles enriches these dynamics by modifying the mode-structure and the re…
Sedimentation Dynamics of Bodies with Two Planes of Symmetry
Harshit Joshi, Rama Govindarajan
We show that bodies with two planes of symmetry can display a range of behaviors even without inertia. Any such body supports a conserved quantity in its dynamics, and is either a…