52 citations · 59 across the 5 of their papers we have counts for
6 papers
TheoPhysEval: Assessing AI agents at autonomous theoretical physics problem solving
A. Ramesh Chandra, Aaghaz Mahajan, Ainesh Sanyal +32
We present a suite of 50 unpublished research-level theoretical physics problems with verifiable answers. Without AI assistance, a typical problem in our collection could be solved…
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,…
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…
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…
Retardation of the onset of yurbulence by minor viscosity contrasts
Rama Govindarajan, Victor S. L'vov, Itamar Procaccia
Motivated by the large effect of turbulent drag reduction by minute concentrations of polymers we study the effects of minor viscosity contrasts on the stability of hydrodynamic fl…